Question:
#ExplainThis: Where does the light go when you switch off a light bulb?
anonymous
1970-01-01 00:00:00 UTC
#ExplainThis: Where does the light go when you switch off a light bulb?
307 answers:
Joanne
2015-02-07 03:37:39 UTC
Light travels at 300,000,000 meters per second. There is a very small period of time after switching it off where there still are photons from the bulb in the room. But these get absorbed/scattered by the wall and thus you don't see them. This what happens to all of the light that came out of the bulb significantly before you turned it off as well -- the photons (or EM radiation, take your pick) are no longer present in the room in their initial form. When the light hits the wall, some of it is absorbed, which heats up the wall ever so slightly (just how sunlight can heat things. For that matter, you can warm your hand even with a flashlight if you hold it in place fo a couple of minutes. You can do the same by placing your hand near a lightbulb). This heat dissipates through the wall. Also, some of it is scattered back with a shift in wavelength -- the electromagnetic radiation is still present in the room, but it is no longer visible. It could be radio waves/infrared waves or even ultraviolet waves. It's harmless, though. Eventually, it all leaves the room in the form of heat.



Remember, a light bulb doesn't "contain" light. It contains a filament, which glows when you pass electricity through it. This exactly what happens when you heat a metal -- the electrons get excited and start emitting visible light. Here, you are supplying energy to the bulb (in the form of electricity), and it gets heated, giving off light. For CFL bulbs the system is more complicated, but it still involves the excitation of electrons.
A conscience
2015-02-06 11:41:14 UTC
Light is an electromagnetic wave. It is constantly moving. You see light when it hits your eye and excites electrons on specialized molecules in specialized cells in your eye.



An incandescent light bulb emits light via thermal excitation of electrons in the filament. Your power supplier sends an EM wave down the wire which causes the electrons in the wire to oscillate back and forth. In the process they collide with each other and the atoms in the filament, creating heat. When this thermal energy dissipates into the surrounding, part of it is in the form of visible light.

That light travels away from the filament and into your eye.



The exact instant you switch off a light bulb, the electrons in the filament are still pretty energetic. They will continue to emit visible light for some finite amount of time until they lose so much energy most of the light they emit becomes infrared (invisible to the human eye).

Even once they reach room temperature, they will continue to emit infrared light (and other low frequency radiation).



LED lights behave in a similar way except electrons are not excited with thermal energy (though thermal excitation still occurs to some extent). Instead, direct current is sent through the bulb and electrons are pushed into a higher energy level by sheer density because only a certain number of electrons can exist at any energy level. Eventually an electron at high energy will find a place in the atomic lattice where it can exist in a lower energy. When that happens it releases its extra energy in the form of light.
Common Sense
2015-02-06 12:39:53 UTC
Turning a lightbulb off does not change where light goes. It simply stops new light from being emitted.



When the light switch is turned off, any existing light continues to go in the same direction it was prior to the switch being turned off. Turning a light bulb off has no effect on the light waves produced prior to the bulb being turned off.



This is basically a trick question. A bulb that is turned off, emits no light to go anywhere.
Alexandre
2015-02-07 08:08:56 UTC
When you switch off a light bulb, the bulb no longer emits any light.



What about the last photon that was emitted?



It's going to keep moving in the same direction at about 671,000,000 MPH until:

1. it hits 100% opaque object

2. it fades out. How long depends on the intensity of the light.



If you're talking about a light bulb, its light will vanish almost instantly after it's turned off.
Mutt
2015-02-06 12:03:16 UTC
The real question is if the bulb actually emits light, or does it suck up darkness?
?
2015-02-06 12:19:48 UTC
It hides in your pockets until you flip the switch again, and then it jumps out and yells "Surprise!!!!!"



How many Answer Team Members does it take to screw in a lightbulb..???



5 ----- One to deny your appeal for a new lightbulb......

another to overturn the first denial

------one to change the green lightbulb to purple........

one to allow the Anonymous trolls to run wild while you work.......

and one to switch your lightbulb to a totally unrelated room !



BAZINGA!
Big Kahuna
2015-02-06 11:33:31 UTC
Well,there is ultraviolet called dark light,then a little light called light light,and then there is no light called light zero.It's kinda like Coca Cola.
Bert Weidemeier
2015-02-06 11:46:43 UTC
I often wondered what happens to the light when I close the refrigerator door....says Edith Bunker!
Spunkynut
2015-02-07 19:45:21 UTC
Well, you didn't ask this to any particular group. Like scientists including physicists or astronomers. You simply wanted to know where did the light go. No talk about photons, tungsten, the speed of light was necessary really. I say this in presumption that anyone, including those without any such education could answer. It is a good question, because one can think that dark is SOMETHING, such as what might be described in a book of fiction or even poetry, as a blanket. Dark is-er-nothing-an absence of light. So darkness doesn't gobble up light once the switch to a light bulb is turned off. Darkness just becomes evident. Assuming darkness is there such as at night or in a very dark room.

The light is simply being produced when the switch is on. When the light switch is turned off, it ceases to be produced. In all practicality, the light you see is no longer evident when it is turned off. Darkness is now evident.

So on a practical level-no E=mC2 and all that, just to answer your kids when they just have to ask you one more question when you put them to bed and they (not you Yahoo team, just the kids) ask "I want to ask one more question. Where does the light go when you switch off the light bulb?" You just say the truthful thing is that it just isn't there anymore until the light switch is turned back on. Say lots of things work together to make the light bulb light up when the switch is on. And when the switch is off, everything that works to make the light stops working.

Then a kiss, a hug, a goodnight, don't let the bedbugs bite, and an I love you. And then usually OK, just one more drink of water then its bedtime for sure.
?
2015-02-06 11:12:23 UTC
It becomes Pixie Dust! To be used for later use!
Ava
2015-02-07 06:41:26 UTC
It doesn't GO anywhere. When you switch on a lightbulb, the wires inside the wall connect, completing the circuit and allowing light to travel through the wires and into the lightbulb. When you switch OFF a lightbulb, however, the wires separate, and the circuit is not completed. The light energy would "travel" through one wire, but it has nothing else to go through. Therefore, it is an incomplete circuit and the light is still within the wire, but unable to travel across to the lightbulb.
anonymous
2016-12-12 21:27:20 UTC
Switch Off The Light
RickB
2015-02-17 11:49:43 UTC
Some of if may escape through a window and, if it's pointed the right direction and doesn't encounter any obstacles, may make it into outer space. But that still leaves the question: What about the light that DOESN'T escape? What if all the windows in the room are covered?



The answer is, the light continues to bounce from wall to wall, maybe a few dozen or even a few hundred times. On each bounce, it leaves a little bit of energy behind, in the form of heat which (very slightly) warms up the wall. After a number of bounces, the light has so little energy left that it's no longer visible. As it loses energy, its wavelength expands, until it's basically infrared (heat) energy, in amounts too small to detect even with a thermometer.



Light travels so fast that even 1,000 wall-bounces happen in just a few microseconds; so the light's intensity has dropped to essentially zero faster than you can blink.



But suppose the room's walls consisted of perfect, 100% reflective mirrors? Well, that would be a different story. In theory, the light would keep on bouncing indefinitely. If you set up a light inside a closed box lined with perfect mirrors, and then turned off the light, it would NOT go away. You could come back a week later, open a small hole in the box, and witness a flash of the trapped light.



But no mirrors are 100% reflective. So let's imagine one that's 99% reflective, which is considered quite high quality (considerably better than your bathroom mirror). This essentially means it leaves 1% of its energy behind on each bounce. Let's line the insides of a 20-foot room with such mirrors. And now let's turn off the light. Will we see the light gradually diminish as it bounces around, or will it still disappear "all at once".



Well, pretty much all at once. After 1000 bounces, the intensity of the light has dropped to a mere 0.004 percent of its original brightness. (That's 0.99 raised to the 1000th power, in case you're interested.) After 2000 bounces, the intensity is only 0.0000002 percent. The room is now "dark", by anybody's standard. And how long did it take to get that way? About 41 microseconds.



So, even a room coated with 99% reflective mirrors goes completely dark (all the energy converted into heat) well within the blink of an eye.
Ghost Of Christmas Past
2015-02-09 02:12:12 UTC
The same place as it goes when the light bulb is switched on. Light is not a state of being, it is something that is being continuously produced by the light bulb and that is why it uses electricity all the time it is on. The light is absorbed by some surfaces and reflected by others. Eventually it is all absorbed and converted into heat. The environment surrounding the light bulb is heated to the extent of the electrical energy fed into the system. When the light bulb is switched off, the supply of light is terminated and the last of it is converted into heat within a few microseconds.
MD
2015-02-09 08:15:16 UTC
The same place as it goes when the light bulb is switched on. Light is not a state of being, it is something that is being continuously produced by the light bulb and that is why it uses electricity all the time it is on. The light is absorbed by some surfaces and reflected by others. Eventually it is all absorbed and converted into heat. The environment surrounding the light bulb is heated to the extent of the electrical energy fed into the system. When the light bulb is switched off, the supply of light is terminated and the last of it is converted into heat within a few microseconds
curtisports2
2015-02-08 15:22:32 UTC
Light from an incandescent bulb is the visible result of heat. Almost since the discovery of fire it was known that heat gave off light. The idea of the light bulb came about when it was discovered that electricity created heat and that capturing the reaction within a glass enclosure would be an advancement over fuel-burning open lamps. Edison didn't invent the light bulb but he was the first to patent a commercially-viable filament, ie, one that lasted a decent amount of time before burning out.



Once the circuit that creates the heat is broken, there is still heat, for a while, but the heat in the visible range ceases immediately, and the light 'goes out'.
?
2015-02-08 13:57:11 UTC
When you turn the light switch on, you are effectively turning on a circuit, which has a light bulb (or several of them). What happens is that the current in the circuit then interacts with atoms in the filament and it causes them to heat up. Heat is just energy, so the atoms gain this energy, and they transition to higher energy levels. When these atoms go back down to their normal energy level, the energy is released as light. This is what we see.



So when you turn off the light switch, the light doesn't go anywhere, the current just stops flowing, which means that there is nothing to give the atoms energy so that they can transition between different energy levels.



The light that is in the room at the time you turn off the light is then scattered and absorbed by objects in the room, which is why the room goes dark. [Note that the photons when the light is on are continually absorbed by the surroundings, they bounce around and lose energy an become thermal. A 100 watt bulb heats the room with 100 watts like an electric heater except most of the energy of the photons is in the visual spectrum, and it degrades by collisions absorptions and re-emissions to thermal levels].
?
2015-02-08 14:45:52 UTC
Once the light leaves the bulb, it will encounter various objects in the room. When it does, each object will absorb a portion of the light. The reflected light is what gives an object it's color. For example, a red tomato absorbs all color waves except red. When a light bulb is switched off, the remaining light will continue along a straight path, being reflected or absorbed by the various objects in the room until eventually all light has been absorbed, leaving the room completely dark. Because the speed of light is so high, this process of diminishing light appears instantly to our eyes.
?
2015-02-08 01:51:14 UTC
Whether it's a light bulb or a star, the light travels at 186,000 miles per second. In space, when a star stops shining, we continue to see the light until the photons have passed us here on Earth. Many stars we see in the sky no longer exist, but we continue to see the light because they is so far away. If the light hits a gas cloud (nebula) it is dispersed. When we look at light that has been traveling for 4.5 billion years we are seeing light that was produces shortly after the Big Bang. So by seeing the oldest light we are in effect looking back in time. So, when we turn off a light bulb we continue to see it, but very briefly, until the photons have passed us by at 186,000 miles per second. They will continue on until they meet some source of absorption, such as a wall, or even the air around us. Since there is no "air" in space, the light from stars will continue on until it meets an object or is dispersed by the faint gas of nebulae. The more sensitive, or large, a receiver is, the fainter the light it will detect. Also, visible light is only a small part of the Electromatic Spectrum, which includes sound, light, heat, radio waves, x-rays and so on. Light is broken down to the various colors of the rainbow from red, orange, yellow, green, blue and violet. Below red is infra-red, or heat, above violet is ultra-violet, or UV rays which can damage our eyes and skin. If our eyes worked on a different, lower, frequency, we could see sound!
?
2015-02-06 22:33:44 UTC
This is harder to answer than I first thought. One can just as easily ask, "Where does the light go when you leave the light on?" Surely the light bulb won't bury you in photons, right?



However, with a little searching, I found this source, and now will to attempt to paraphrase its answer. Wish me luck.



Light, like heat, depletes when it runs into something. That's why light allows us to see. When light hits an apple, it is red because all the photons are absorbed by the apple EXCEPT for those traveling in the red wavelength. The red wavelength bounces off the apple, hits us in the eye, and voila! A red apple!



And so, when a light bulb is shut off, everything in the room absorbs the photons they can hold on to, and your eyes absorb the rest. It really is that simple.



OF course, you can also open the refrigerator after you shut off the light. See? There it is!
HumanDescendant
2015-02-07 08:58:53 UTC
Light can travel up to 300,000,000 metres/second. When you switch off a light bulb the light gets absorbed by the walls and everything else in the room. When the light energy gets absorbed, it's gone. You can't see it anymore. There must be a light source to keep re generating the light in order for it to stay bright in that room. Since everything has absorbed the light energy, there is no more light energy for your eyes to "see". Regarding vision, light bounces onto the eye and excites certain cells, sending the signals to your brain, then you can see it. Here's the cool part; even when the light is "off", it still emits light. Low-frequency EM radiation to be exact. Infrared. UV. Even when the light has been off for a good while, it can still emit these EM radiations. But these radiations are too low for the human eye to see. As an example, point an IR tv remote at you. Press some buttons on it. You can't see it, but... a video camera can. Do the same with a camera and you can see the UV radiations. But what you're looking at is not UV. The camera just displays it. Hope this #ExplainsIt!
?
2015-02-07 09:44:11 UTC
The photons' energy gets absorbed into the walls and increases the total energy of the walls.

Photons are emitted when an electron jumps from an orbit of higher energy to an orbit of lower energy (closer to the nucleus).

Even if the light hits a window, it is absorbed by the window and doesn't go through.

It increases the energy of the atoms in the window and causes a chain reaction of electron orbit jumps and photon re-emission until a photon is emitted by an atom on the surface of the other side of the window.

There is a lot more to this though. This is only true for windows that are hit with special frequencies of light. But this should suffice for the purpose of this question.



When the filament is heated, photons are released by the above process. When you flip the switch and break the current, the electrons in the filament aren't jumping far enough in their orbits to produce visible light, though they may produce lower-frequency, invisible light for some time.
?
2015-02-07 21:34:01 UTC
AC current heats up the incandescent light bulb's tungsten filament to a white hot temperature where photons, which are quanta of electromagnetic energy in the total visible spectrum, are emitted as light. Now turn off the current and this process STOPS and the light is gone...so it's not hiding under the bed waiting for the wall switch to be flipped to the "ON" position and again light up the room.
?
2015-02-07 16:07:43 UTC
Who can know so end or review of question:



The inherent dilemma in the question centers on what is meant when we say "visible light" for, indeed, visible light, as commonly supposed, is a perceptually derived description of a thing that, indeed and in fact, DOES NOT EXIST. Light, per se, is not visible. So when a seemingly well intended question asked (deviously perhaps?) what became of the light when the lamp was switched off (another convenience dys-wording: as lamps are not actually switched off or any other way unless something takes their place), it presupposes an actual and not just seeming connection between lamp and the intuitive "visibility" of said light; or presupposes that most viewers will give heed to only the visible effect of light (on their retinas) but not to the actual light itself (travelling at speed c) which is not visible and which, for all we or theory can reveal; travels on indefinitely…because what becomes of it, and when, cannot in principle ever be known or captured, so long as it (un-seeable light) is free to do so and unconfined. So, the only valid OVERALL ANSWER THAT IS FUNDAMENTALLY and THEORETICALLY CORRECT answer is: That answer solicited by the team must be: It is a MYSTERY what happens to the "light supposed as travelling from a visible energized source, or as a reflection (such as from a wall or dust in the air). This must be so according both to common sense and as a consequence of the Heisenberg Uncertainty Principle.
Julia
2015-02-07 10:32:13 UTC
When you switch off a light bulb, the bulb no longer emits any light.



What about the last photon that was emitted?



It's going to keep moving in the same direction at about 671,000,000 MPH until:

1. it hits 100% opaque object

2. it fades out. How long depends on the intensity of the light.



If you're talking about a light bulb, its light will vanish almost instantly after it's turned off.

Alexandre · 2 hours ago
OMPRAKASH
2015-02-06 21:56:07 UTC
Light is a form of energy and travels in the form of electromagnetic waves . Light bulb is a electronic device who converts electrical energy to light energy.When we on the switch of the light bulb the electricity flows through the light bulb the free electrons present in the wire get accelerated and collides with the tungsten metal of the light filament and so the heat energy produces and radiate energy in the form of electromagnetic waves so light produces. But when we of the switch the cannot be accelerated because the free electrons does not flow . so light can not be possible.
?
2015-02-07 00:55:05 UTC
I think term the question simply it try to ask where the light that it's reflected or travel in the air it's disappear after light it go off.So it's not about nature of the light or source of the light and wave length of the light or expectorate of the light .

Question is that where light it's go after source it's eliminate continuance?

we can see the light from million light years distance in matter of second focus and if the star end at that moment we will not see any light after just a boom bright and then will be disappear in darkness.Same phenomenon it happen when light it goes off and darkness immediate it take over till moment that our eyes are capture tiny bit light from other sources which far or close distance will determinate range of visibility but not colorize images.mostly light it's a substance that it can travel trough to the particles with an unbelievable speed (300,000 Km per second).This speed it's so fast that eyes are not able recognize or follow the light from start point to where ever it's travel .As soon as lamp(source of the light it goes off ,light source it's gone and so light that was in the room it travel with same speed but without continue ,which mean in matter of second that amount the light it's 300,000 Km far from us and that distance is so far and speed so fast that our eyes can not capture frame images from it .

It's like a pellet when it's leave chamber moment after it's 1000 yard away ,now do same test with light and when you turn it off very fast follow the light for a very short period of the time you will see a tiny fraction of the light that it is pass and then nothing it's viable cause that tiny light it's 300,000 Km far from where you at.In a close room even that distance it closer let's say 12 feet and now imagine speed of the light in 12 feet distance ,which it captured by harsh matter such as wall or wood or any other solid that it's there.
Gordon
2015-02-08 04:13:47 UTC
And you can test the slow decay of the emission of energy from your chosen light source. For an incandescent bulb (The Edison type), and also for the electric arc light, the bulb is very hot for some minutes after the light is turned off, as it emits heat (infra-red radiation) to cool down.



For fluorescent tubes (of all types) and other gas excitation lamps, the system holds both significant heat and also electrical energy - so a faint flicker continues for several minutes.



But all this energy stops being produced once the lam[ cools to ambient temperature. It does'nt 'go anywhere' it is simply not produced.
Jeff B
2015-02-07 11:38:23 UTC
To make a point, let me ask you a similar question:

Where does the torque go when the engine dies?

Does the answer not seem obvious? The engine produces the torque, the torque stops being produced, it doesn't go away, it simply ceases to be.

The same goes for the light bulb. The electricity passes through the filament and is converted into emissions of energy we see as light by the nature of the metal.

When the electricity is cut off by the switch, there is no more passing through the filament, and no more light is being produced.
David Y
2015-02-07 05:14:58 UTC
Light is not self-sustaining, there must be a light-source to constantly regenerate the light. When

you extinguish a light-source, it's like deflating an idea - without the source, of the light or idea,

the consequence is darkness. Where does the light go? The bulb dims and the light then fades

away into oblivion.
anonymous
2015-02-08 10:45:39 UTC
In a room, the light (photons) leave the bulb and hit the surrounding surfaces, some will be reflected, some will be absorbed and then re-emit the the frequencies that give the object colour. Some light will be absorbed and re-emitted as black body radiation. If some light escapes the room through the window, it will travel on until it hits an object (same process as in the room), or otherwise (say the light travels up into space), possibly travel on for millions on years.
Anpadh
2015-02-06 11:48:45 UTC
Light is energy. Energy, like matter, can neither be created nor destroyed. It is always there. and the quantity of energy is always exactly the same. When you pour a bunch of one type of energy (electricity, in this case) into some type of material (matter), the energy level of the material obviously rises. It's like filling water in a pool that already has water in it. Pour in enough water and you will see the water-level rise. Pour in too little and the water-level will still rise but you won't be able to see it. You are basically reducing the energy level of the light-bulb when you switch off the electricity. So it goes back to its normal state. This is exactly like draining the pool just enough to take back the extra water you put into it. But it takes a while for the pool to drain. You can see the water-level drop. Cutting the power drains the energy "instantly" so you can't see the level drop. But it isn't really instant. The bulb stays warm for a while because all of the energy doesn't go into just creating brightness. Some of the energy turns into heat also.
anonymous
2015-02-06 20:00:38 UTC
When you turn a light off, the Candelas of the bulb is 0, so the viewer sees no more light.

the light that was being emitted, travels outwards, bouncing into and out of atoms. much like kenetic energy.



Also in vacuum, the further you are from light, (the further light travels) the dimmer the light gets.

so after copious amounts of bouncing, the light would be near 0.

also and i feign say this for lack of employment, the visible light spectrum would be changed by the impacted atoms, so the light if after many bounces remains equal and not zero, then likely the visible light was absorbed by atoms ,and emitted as invisible light.
Mahoganie
2015-02-07 11:15:34 UTC
When you turn off a light bulb, the electricity sparking the light goes off so therefore the light dies. Its that or the light never leaves and is still held in the bulb
?
2015-02-07 13:14:49 UTC
The light doesn't go anywhere special - anywhere different to when the switch was on.



When the switch is on, the electrical current flowing through the bulb is converted to light energy as it passes through a suitable, "light-excitable" material in the bulb (this material and the particular details of "light-excitement" varies depending on the type of bulb).



The light emanating from the bulb radiates throughout the room and is both absorbed and reflected by materials in the room as well as the molecules and particles in the air. As long as electricity is flowing in the bulb - as long as the switch is on - it continues to emanate light energy and the room continues to be lighted.



When the light is switched off, light energy stops emanating from the bulb because the electrical energy source used to excite the lighting material in the bulb, has been switched off. For a split second after the bulb is switched off, the last bit of light emanating from the bulb continues to be reflected and absorbed by materials within the room until all of it is eventually absorbed causing the room to be in darkness.



It is because of this continuous reflection and "gradual" absorption of light, that the room quickly dims to a state of darkness instead of becoming instantaneously dark. Granted, this dimming to darkness happens very quickly and to the untrained eye it is indistinguishable from instantaneous darkness. Also, the amount of reflective versus absorptive materials in the room determines the speed of this dimming effect.
Stand-up philosopher. It's good to be the King
2015-02-06 17:19:16 UTC
Depends on the lumens being put out. Depends on the environment the source is. A cigarette can be seen for a mile at night if there is not too much light pollution from other sources. Depends on things like fog, dust, solid objects. It will go on many light years such as a distant star or be drowned out by a full moon. The flash from the afterburner of jet fighter can look like the flash of a nuclear device if you are close enough...say 100 feet...followed by that loud sound...15 of us in the shop thought that was the last light we would see. We all thought the Soviets were trying to take out our bunkers with our nukes. All it was a F 104 going vertical after a training run on the ADA unit. LOTs of variables.



27 years playing with electricity Army, LLNL, private sector
Rolo
2015-02-06 12:34:25 UTC
Visible light photons cease to be emitted from the hot filament or excited gas, arc etc, a light photon theoretically travels forever until it is absorbed by something. This is why you see light from stars in the night sky that may have come from a star that is long dead for millions of years and the photons are still traveling for many millions of years to get to us here on earth. It takes a light photon over 10 thousand years to fight it's way out from the core of our sun so they are very long life particles or waves since light is both an energy particle and it has a waveform.



I guess the answer is that once a photon is released it will continue to travel at 300 meters per second until it transfers it's energy and is absorbed by colliding with solid or gaseous cloud type matter like water particles and dust which is solid atomic matter in the air or be diffused - bounced off and continue to travel in a reflection manor.



ADD: In the video at question, you are seeing hot tungsten gas particles rejected from the filament at a high energy state in a vacuum loosing the their high energy state and emitting the photons they hold as the cooling filament shuts off and tungsten vaporized atoms coalesce back into a solid onto the cooling tungsten filament, in a video from a super high speed frame rate camera. I had to watch the video to figure out what the question was pertaining to. Although "A conscience" is partially right, it is gaseous tungsten atoms transitioning from a high to low energy state discharging held onto photons in this video if no inert gasses where in the vacuum vessel, note that this looks like a test bulb vacuum base (barely visible) that may have not been purged fully or has fluorescent inert gasses in the bulb to catch the fluorescent glow effect on camera.
akhil dayal
2015-02-09 11:30:58 UTC
Maybe you should think of what happens to sunlight when sun goes off in the night?



Light disappears because its source gets turned off. (light bulb switched off).

Why? just think why will your cycle stop when you stop pushing the peddles. because there is no source of ENERGY to keep it moving.



Secondly, he light we perceive is the light reflected from objects around us. Unless there is light(photons or packets of energy) falling on these objects we can't see anything. Thus darkness.



3 - Just think that we cant see light traveling in air but we can see illumination from the light source. And



Lastly - you should get intuitive idea of what I just described as when you turn the light off of a room. Its not complete blackout. Darkness would mean with sometime, things still appears to us from the light sources out of the room. Say, moonlight from a window opening or something.



You may refer to other answers for good scientific explanation! I have tried to provide a general concept only.
anonymous
2015-02-09 11:54:58 UTC
We see an object because it blocks light. If light is allowed to pass through, that object would be invisible .We have all had experiences with glass doors. The light bulb can be compared to the sun. When the sun shines there is light. Darkness is the natural state of space. The same thing happens to the bulb. When its on, it lights up darkness. When its off, darkness pervades.........just like the sun.
?
2015-02-09 17:21:39 UTC
Light disappears because its source gets turned off. (light bulb switched off).

Why? just think why will your cycle stop when you stop pushing the peddles. because there is no source of ENERGY to keep it moving.



Secondly, he light we perceive is the light reflected from objects around us. Unless there is light(photons or packets of energy) falling on these objects we can't see anything. Thus darkness.



3 - Just think that we cant see light traveling in air but we can see illumination from the light source. And



Lastly - you should get intuitive idea of what I just described as when you turn the light off of a room. Its not complete blackout. Darkness would mean with sometime, things still appears to us from the light sources out of the room. Say, moonlight from a window opening or something.
anonymous
2015-02-09 06:21:34 UTC
The light disappears when the bulb gets switched off.
gsr
2015-02-24 14:10:02 UTC
When you turn off a light bulb, the light bulb stops absorbing darkness. As a result darkness fills the room. When you turn the light bulb back on, it absorbs the darkness and you are then able to see things again.



[Why do you think non-working light bulbs look dark -- it's because of all the darkness they have absorbed while they were working.]
John
2015-02-06 19:19:48 UTC
Light continues to move away from it's emitter's source - forever. If not absorbed by other matter, it will continue moving through the universe, away from it's source. This is how we are able to see billions of years back in time to the creation of the universe. Light is still coming at us from that point which it began billions of years ago (theoretically).



I suppose, in a room with doors and windows closed, the light would find it's way out through small openings in the door and window frames, as well as any vents leading to the outside, where it would continue on (weak as it may be) forever. If you plug all those gaps, the light may still make it's way out as another form of energy, but may not be reconstituted as the light we observed when the light was on.



I got that off the back of a box of breakfast cereal (NOT!)
HazelEyes
2015-02-06 14:33:38 UTC
When you turn off a light, you are essentially cutting off the source of energy to the bulb. Light is emiitted by electrons in a shell. When energy is put into the electrons, they move away from the nucleus, absorbing energy. Once those electrons are irritated, they move closer to the nucleus and while moving closer, they emit photons (light).



The closed system does not actually gain mass when energy is put into it. Think about it as if all electrons have an equal mass. When energy is put into that electron it does not actually gain mass, it gains density as a wavelenth. In a standard way of thinking, energy is not a gain in mass. In a more advanced way, a gain in energy will come with a gain in mass. All in all though, the only effect will be that more energy is put into the system.
Curtis 1911
2015-02-08 08:46:07 UTC
When you switch off a light bulb the light goes to the same place it was before you switched on the light bulb.
Aaron
2015-02-09 08:53:27 UTC
The light is created by heat. When the power to a light bulb is shut off, the heat stops and therefore so does the light. It's really not any harder than that.
?
2015-02-07 12:16:06 UTC
So it turns out there actually ARE stupid questions, and this is one of them. The light is being generated by the flow of electricity to the bulb. Turn it off, and there's no light. This is like asking where all the words are until you speak them. When you stop talking, where do they go?
?
2015-02-07 06:08:37 UTC
Light from a bulb is due to the burning tungsten filament. The light intensity depends up on it's power consumption , the unit of measurement is watt. When we switch off the light , the tungsten filament stops burning and hence no light is emitted.
inday
2015-02-06 18:56:42 UTC
Add your answerWhere does the light go when I switch off a light bulb?



Good question, I just tried it now.

When I switch off the light bulb the light hides back inside the switch.
anonymous
2015-02-06 15:29:58 UTC
The free electrons lose energy in the Atom, The Atom then goes into a negative state thus it quits producing Quantum particles of light (photons) the remaining photons that streamed out before the induced voltage was interrupted (light switch) becomes absorbed and dissipated thru longer wavelengths as well as thermal energy within the matter that is in proximity or in line with. Other EM particles (photons) are not visible to the human eye Infrared longer and shorter wavelengths, as the tungsten in the bulb cools these wavelengths of ( Photons) are also emitted during this power down phase just not visible. The Jablonski scale explains the absorption of photons in different types of matter as well as other photons within the EM scale. In layman terms and without writing a book. So even Yahoo can understand it. LMAO. Now give me my 10 points !.
?
2015-02-07 12:11:33 UTC
let's imagine a story out of this question ^_^ some thing like this .. :

when u turn the lights on , light understands it as u love it , and when you turn off the light , Light understands it as u hate it .

so when u turn the lights off , light goes and searches for ppl who love it , in our case : someone who's just turned on his light . and so light keeps transferring from bulb to bulb ..

and there are some laws for this transportation :

- colored lights search for ppl who wanna turn on a light of the same color .

- disco light's are the most active ones. and blue lights are the most lazy , that's y blue lights don't survive much and we don't see a lot of blue lights. (explained in other law)

- light moves so fast and unlike what we learned in schools , it moves in any direction and it's free to choose a straight path or not.

- when light doesn't find any one who loves it within 16 seconds it fades away , and dies . (explanation of a previous law)

- new bulbs have new born lights , broken bulbs are just good bulbs but there was no free light at the very moment we wanted to use it so it broke .

- aliens make new-born lights in special factories on another planet which is a top secret , all that humanity knows is bulbs' factories make deals with the aliens of that top secret planet in top secret conditions .

- to be a specialist of trading light , or a chairman in one of the factories , u need special training to get familiar with the foreign language of the aliens and some technical stuff .

aww i can't wait to see this story as a Disney movie ^_^
?
2015-02-07 00:02:09 UTC
The light produce will just keep on going and going until it hits something and is an absorbed by something, be it air molecules, dust or an object then that happens two things happen,



Some of it is reflected and some of it is absorbed and turned into heat. Much like the Sun and other stars, some light as travelled light years, and we can with the aid of telescopes see light billions of years old.
steven
2015-02-06 12:50:57 UTC
You asked where it goes when I switch off a light bulb? Do you mean where does it go when a light bulb is switched off by anyone?
?
2015-02-06 20:12:05 UTC
At some time shortly after you switch off the bulb, the last photon of light is emitted. That last photon continues on its way until it hits something, maybe your eye, maybe a rock. In either case, the photon then is converted into heat energy, and in the case of the eye, also stimulating a rod or a cone.
Philomel
2015-02-07 11:50:40 UTC
When you turn off a light bulb the light goes OUT.
Dynamite Dan
2015-02-07 17:11:53 UTC
When a light source is removed the light will vanish as well because the light is being absorbed by the materials that it hits. Red objects absorb all frequencies of light except the hue of red that it is. As does all colors respectively. Light reflected will eventually hit another object and be more than likely absorbed there too. This will continue on at intense speeds until the entire amount of energy has been absorbed.
cherry
2015-02-08 02:38:47 UTC
Here's a No Nonsense Answer!!



Light gets Absorbed or Reflected or Refracted when it meets a surface and If no surface exists, it travels endlessly.



Here's a fun fact:-



See the stars in the sky?



Some stars are so far, that light emitted from them takes years to reach our eyes. So the truth is the star wouldn't physically be present at the location from where the light was emitted by the time it reaches us.
Mezrah
2015-02-09 08:06:57 UTC
When you switch off a light, the ancient god Ra uses his magical staff to create the monkey of truth which in turn impregnates a human girl who gives birth to John Conner who saves the world from Sky Net with the help of the Avengers and Godzilla. Then Hermes sends a note to Odin that calls him to a meeting in Afghanistan. There a new law of physics is signed by the House of Representatives to be put into action. This law enables Soap from Team 141 to kill the Senate of the United Chess Federation with an M200 Intervention so that Bobby Fisher cannot return. This starts rioting in America which leads to the shut down of all electrical power plants in the area, shutting your light off.
honesty_counts
2015-02-07 20:36:06 UTC
It doesn't go anywhere because it wasn't there in the first place.

The light was being constantly created by the constant supply of electrical energy to the bulb, and when you turn off the bulb that supply of energy is stopped, so the creation of light stops. So the light does not 'go' anywhere, it simply stops being 'created', that's all.
?
2015-02-09 10:49:56 UTC
The simple answer is that light is a type of radiation, thus when the cause (the light bulb) creating the light ceases then the reactions (visible light) ceases as well. Now the complicated answer, involves the radiation wave and traversing...but that would be an overcomplicating answer to a simple question.
stargate
2015-02-07 01:05:13 UTC
Assuming it's an electric light bulb, the switch cuts off the flow of electricity to the bulb filament which then no longer illuminates.
?
2015-02-06 18:47:34 UTC
That sure answers a lot of questions I've had about the Yahoo team.

When you turn a light off, somewhere in the world another switched on.
?
2015-02-07 02:20:24 UTC
I don't care - I'm not afraid of the dark.



No really, it's an interesting question.



If there wasn't me (or you) to perceive it, it didn't exist, I know it's kind of mind-buggering, but if there wasn't you or me to observe that little photon rocketing around, it wasn't rocketing around in the first place. It's our desire to "see" something that lets us see, not some defiant little particle that defies logic that allows us to see.



If you had someone standing behind you when you flicked that light switch off, he might have a whole different perspective. By the way, LOOK OUT, he has an axe!



But really, light goes nowhere - because it never existed.
anonymous
2015-02-07 13:28:26 UTC
It gets sucked up into the nearest black hole. So, depending on who is standing nearest the light bulb when it is turned off .... When the light switch is turned back to the on position, you will hear a fart and that is the light leaving the black hole and going back into the bulb.
anonymous
2015-02-07 07:55:54 UTC
An open is created in the circuit which stops current from going to the light bulb which stops the filament from glowing. The light just dissipates into the environment, same as when it is on.
hello
2015-02-08 08:19:56 UTC
There is no such thing as 'light,' Light is produced by the continuous flow of electrons that travel through a circuit. When you turn a switch on, it completes the circuit, therefor allowing the electrons to travel through the light bulb, lighting up the light. So when you turn the switch off, it stops the electrons getting through to light the bulb as the circuit is incomplete.



Now I've explained that, you explain this:

Where did the rocks in the big bang theory come from? Like they can't have been floating in space forever, so how were they created? EXPLAIN THAT!!!
American Patriot
2015-02-06 14:46:18 UTC
To change a light bulb, it takes THREE Answers Members, just like it requires THREE Kennedys.

That is, one to climb the ladder and hold the bulb, while the other two drink until the room starts spinning.
zhao z
2015-02-08 16:22:55 UTC
To answer the question,

one needs to understand how does the light bulb lights up:

When the switch is turned on electricity flows to the filament, heat it and it glows.



When the switch is off, electricity stops flowing. the bulb no longer glows.
13Across
2015-02-06 15:43:47 UTC
It keeps going at the speed of light in whichever direction it was heading before the lightbulb was turned off. Unless it hits something. Anyway, that's what I was taught at school.



Can Yahoo Staff answer any of these questions, all posted on Y!A within the last 24 hours and immune to multiple reports by decent-minded users with high TR? (I've edited them a little to make them more difficult to find, unless you know how to look.) Several were (unsurprisingly) posted by anonymized users.



(1) "Dsjsnynxjx?"

(2) "Dfthxety e45tg35t135?"

(3) "Why Asian girls are complaining about Asian guys' **** size when they have to blame their loose vagina? I am sure God created Asian **** fits to Asian vagina in the first place"

(4) "How do we stop gay people from taking over society?"

(5) "Nuts, u go right thru my blocks? Don't worry I won't tell anyone that u are a YAT puta"

(6) "Is it bad that I have never gone number 2 in my life? I have never pooped in my life. I just don't need to. Is that weird?"

(7) "Why do white male homosexuals rape little boys?"



Those are merely examples, there are a lot more like that - and worse. But hey, if Staff prefer to post questions to which I knew the answer when I was 14yo rather than to remove filth from Y!A - +2 points.
Sanyojita
2015-04-30 18:42:55 UTC
When you turn the light switch on, you are effectively turning on a circuit, which has a light bulb (or several of them). What happens is that the current in the circuit then interacts with atoms in the filament and it causes them to heat up. Heat is just energy, so the atoms gain this energy, and they transition to higher energy levels. When these atoms go back down to their normal energy level, the energy is released as light. This is what we see.
?
2015-02-07 08:11:12 UTC
Okay! Let's say you walked into a special room covered in polished treated aluminum mirrors with a reflective surface that returned 98% of light it received. The floor is reflective, the walls, door, and lets even throw in that you are wearing a reflective aluminum suit. In this room there is one incandescent light bulb and one switch with a special polished aluminum cover plate with a aluminum covered toggle switch.



You step over and turn the switch off. With the incandescent bulb, you may notice a trail off of red light as the bulb filament momentarily cools down. However lets look at a LED bulb and slow things down.



You step over to the LED light switch and turn the light in the room off. In an instant by human observation the light goes out. Where has the light gone?



That LED flashes 120 times every second. Twice every alternating current cycle with two large flashes, one when the current passes one way and once when the current passes by in the reverse direction.



Lets look at say the last 1/2 cycle and look into that 1/120th of a second flash before we took the energy away from the LED light fixture.



Now to make things easier lets go from 1/120 second to .00833333333 second. Light speeds along at 186,000 miles per second. So how far will light go at 1/120 second? 186,000/ .008333333333= 1,550 miles.



Now let's say that polished aluminum room you stepped into has a floor 10ft by 10ft and has a polished aluminum ceiling 10ft above the aluminum floor.



If the reflective surface of the room where 100% that flash traveling from LED bulb to floor and back would happen how often in the last flash 1/120 sec traveling 1,550 miles before the next flash from the LED followed it 1/20 second latter? That would be 1,550 miles x 5280 ft/ 10 ft room = 818,400 reflections in a 1/120second flash.



So....! We don't have 100% reflective surfaces and 2% is lost in even the best mirrors. That 2% of light gets converted to heat or infrared energy. So loosing 2% a reflection, in one reflection we have 98% of the first flash returning from the polished floor headed toward the polished ceiling, from the ceiling back 96.04 % so in 66 reflections we have far less than .1 % remaining light.



So that light has traveled 660ft. and is reduced to .1% !!! That small remaining fraction of light must still travel 1549.5 miles before the next bright flash of 1/120 second LED light arrives to replaces it!



But where has that bright 1/120 sec bright flash gone? Every bit of that 2% loss has been turned into heat and other forms of energy in far less time than the flash of a human eye blink.



But why when paced in that room do we not see those bright flashes and black voids of light? Because the chemical reaction of the human eye isn't fast enough to capture it! But a Silver Oxide chemical reaction camera is; and when moved will capture multiple images of a LED or florescent bub multiple times. The 1/120 second flash much faster than the 1/100 fastest shutter speed of a camera, most often used speed slower than 1/80th. A 1/60 second shutter opening may show two LED images. A slow exposure of 1/25 sec will show 5 LED flash images.



So mostly when we use LED light fixtures ...we are not living in 'the light' but living in 'long voids of darkness'!
?
2015-02-09 05:11:54 UTC
Nowhere. The purpose of the switch is to enable the completion of a circuit. Hence why the light comes on. If you turn the switch off your "break" the circuit, and so the energy that can potentially used to activate the light remains stored in an uncompleted circuit
Emdadul
2015-02-08 07:15:31 UTC
Most light get absorbed by objects around the bulb and others far away (about 300000000 m after a second)
Charles Jones
2015-02-09 00:20:56 UTC
It occurs to me as I sit here turning off and on my desk lamp, and then thinking about our star; Light is a by product of heat, and most likely the observed portion of the heat source. Kinda like an ember at camp fire which produces light, but when the ember goes out the light ceases or dissipates. So the light really doesn't go anywhere, it is simply evidence of a heat source. Albeit though is dissipates at 186,000 miles per second per second..
GEORGE B
2015-02-07 05:49:16 UTC
It doesn't go anywhere. The visible light is due to the increased energy level of the photons supplied by the electricity. When the electricity is turned off the energy levels of the photons falls to an level that is below the visible light spectrum.
Doctor
2015-02-06 12:23:33 UTC
The light is absorbed by matter. This temporarily raises the energy states of the atoms in that matter. This can cause the atoms to vibrate with greater vigor, or the atoms may re-admit the energy usually at a longer wavelength. Ultimately this results in what we call heat. The heat generated is radiated or conducted into the surroundings attempting to achieve an equilibrium.
Kathleen
2015-02-08 18:42:35 UTC
Well, when you turn off the light, the current flows through the house and ends up being used by the refrigerator. Hence, when you close the door, to the fridge, the light is out, and when you open the light is back on. The current flows back and forth to the light fixture to the refrigerator.

Ha, ha, ha, I made a funny : )
?
2015-02-07 02:55:41 UTC
It dissipates because you stopped exciting the filament to emit photons. A light you can switch off must remain switched on, or the light it did provide no longer exists as light.
?
2015-02-06 20:37:20 UTC
Light is a wave that spreads out. So when you shut of the light. It bounces around the room if you have white walls and a few mirors properly set. Giving you just enough time to get into bed. before it manages to escape the room under the space under the door and out the window as it can pass threw those places and escape outside. Were it spreads out further till to thin to see any more with the naked eye.
generationalist
2015-02-07 05:25:39 UTC
Most simply put you have to stimulate a material with electricity so that photons reach a sufficient energy state so they can jump off of the material.

That is why lights are not made of just any material but very special materials.

Phosphorous is one such material in an inert gas with a mercury vapor is one.

A tungsten coated filament in a vacuum is another.

Carbon elements in a near vacuum with a mercury vapor is yet another.

When electrons flow over the skin of the tungsten conductor or phosphorous skin the photon energy state is stimulated to the point that it escapes or jumps off of the material.

That energy packet/elementary particle is what strikes the back of your eye and jiggles the nerve sensor that sends a chemi-electric signal to the back of you brain where neurons interact in the most amazing distributed mesh network of cognitive thought to interpret it into what we think of as sight (whew) - unless you are truly blind (there are forms of blindness that the eyes actually function but neurons fail to pass the sensed image to the back of the brain where it gets processed. That yields a really bizarre situation of a person who has limited sight but is NOT consciously aware of their limited sight - mind-blowing).



So when you turn off the light switch - you slow the number of electrons moving across the conductive wire surfaces that lead into a light bulb, LED filament or across the fluorescent tube's inner vacuum inert gas filled tube with phosphorous skin (and just a touch of mercury vapor to kick of the electron flow).

Interestingly enough there is a device in a fluorescent tube type lamp called a ballast which serves to provide a high voltage jolt to the tube (1000s of volts) to initiate electron flow across the phosphorous thereby knocking photons into a higher energy state and freeing them from their phosphorous substrate.

Light switch goes off and many fewer electrons flow.

The electrons on the surface of the conductors act more like water freezing on a surface since electrons are always present just not enough are flowing to make the photons jump.

Light switch on and the flow rushes out like water through a faucet to overfill a cup the water overflows and so do the photons - sort of only you put the water in and the photons are already there.

So the light is still there but it in a state that is not free.

It is bound into the white phosphorous, grey tungsten or black carbon.



http://en.wikipedia.org/wiki/Photon
Lohith
2015-02-06 22:06:17 UTC
When we switch off the light it keeps moving in the direction it has been faced(parallel beam of light).Since its velocity is 3*10^8 m/s our eye can't recognize/capture the moving light.And so we feel that the light is no more,but actually its is moving in its path with its velocity(light).I think this moving light was captured in a camera that has 1 trillion frames per second and this camera was developed in MIT(massachusetts) u can also watch this video in youtube....
Professor
2015-02-08 15:25:48 UTC
Light consists of photons. Photons cannot be broken down. At the light source you might have hundreds billions of photons. As the light spreads out the amount of photons shrinks. The photons never disappear, they just become less concentrated as they move outward. As they become less concentrated the light appears dimmer. The light spreads eventually to 1 photon in a given area. A photon can be detected by a frog’s eyes, but not by human eyes which require 5 photons to see. The photons continue to travel outward into space at smaller concentrations until 1 photon is reached. This 1 photon will continue to move away at the speed of light into space.
?
2015-02-07 03:38:39 UTC
First of all, electricity stops flowing through, the electrons in a filament (possibly made out of metal) then start to cool due to the fact that there's nothing to excite them. During this, some light, since electromagnetic radiation is so fast (300,000km/s is its speed), gets absorbed by nearby objects, e.g. the wall, lamp shade, hand etc. A direct consequence of this is heating of objects around it.
?
2015-02-06 13:17:34 UTC
It takes only three yahoo answers team members to change a light bulb. One to hold the bulb and two to turn the ladder.
anonymous
2015-02-07 11:10:19 UTC
Light is energy. Energy can neither be created nor destroyed rather it simply changes form.



Light travels in a straight line and will strike objects in its path. These objects will reflect the light, even tiny dust particulars will do this.



Indeed it is impossible to 'see' light unless it is reflected on something. These reflected objects will gradually defuse the light from its original source and spread it into billions of other sources of reflected light.
stacy
2015-02-07 00:42:02 UTC
Quite Simple !!



There are three things-



1. Source (Generator) 2. Circuit (Wire line and switch) and 3. Device to convert energy



1. When Source run via fuel to get mechanical energy to provide rotation of electromagnetic field which provide charge in terms of Free electron at one end (- terminal , ) and protons at other end (+ terminal) , It have an open circuit.



2. When Wire is connected to -ve and +ve terminal , The charge flow via -ve terminal and stay up to end of the wire (that's why You got the shock when You touch a free charged wire to complete its circuit !!)



3. Device is connected from wires at both the ends by provide a SWITCH (CIRCUIT BREAKER) . The device (electrical bulb) have filament which is made of highly resistant material with less diameter, with higher melting point (More the resistance more will be the heat and less the dia means more radiation to space.)



When You do the Switch ON, the -ve charge will run to the +ve terminal to balance the electron deficiency(that is called ELECTRICAL CURRENT). When current passes through HIGHLY RESISTANCE FILAMENT, The filament start heating due to -

1. conversion of electrical energy into Heat (Light) and radiate into your room converting into PHOTONS.



HERE IS Answer-



When You Switch OFF, circuit brakes and charge will be remain at both the wire's end. There is no current to pass through filament hence No Heat !!

>>Remaining light at YOUR Bulb's filament will be absorbed by the surrounding in a Black
>> Open circuit does not flow the current so electron/protons remain hungry at both the terminals of wire (You can Test them by touching :) )

Oops Generator is running and consuming You fuel to rotate the coil and converting the charge at the both ends !!
?
2015-02-07 00:29:04 UTC
Hello, Have you ever heard of heat? That is where the energy goes. Have you ever felt the heat of the sun on your back? That is because photons smash into your back and heat it up. Different photons have different energy. Some photons heat you up more than others. Some photons have enough energy to damage your cells.



Let me ask you this: Where does all the energy from you car go when you drive it and arrive at your destination.



Let me answer this: all of it ends up converted into heat. The only exception is: If your destination is higher than your origin then some of that energy is converted to gravity that you get back when you go downhill. The next question is: How can gravity store energy?



My biggest question is: can anyone prove me wrong. All the energy expended by your car is absorbed by gravity or heat. If not, where else does the energy go? I want to know: What is your answer sir or madam?
anonymous
2015-02-09 10:11:45 UTC
What I would like to know is this... How come if you had a room that had mirrors for a wall, and turn of the light, the light doesnt stay on. Because if the mirrors bounce light, you should be able to reflect light for infinity with the mirrors and keep the room lit with no continuous light source. am i right?
sci enthusiast
2015-02-06 18:49:59 UTC
The short answer: if just considering visible light, then there is no light when you turn the switch off because the filament is no longer hot enough to emit photons in the visible light spectrum. When the bulb was still on, some of the visible light was absorbed by surrounding matter (for example, photoreceptor cells in the human eye).



To explain the answer in more detail, however, let's more clearly define what the word "light" means in the context of this question. In physics, all forms of electromagnetic (EM) radiation are actually considered to be "light" - even the forms that can't be detected by the human eye, such as radio waves & X-rays. The human eye has evolved to detect visible light, which is what this question is really referring. To clarify jargon: light = a form of energy = EM radiation = photon. All light/EM is energy, not all energy is light/EM, however.



Now, this tells us that whether a light bulb is turned on or off, it is either emitting EM energy in the visible spectrum or reflecting existing visible light because we can see the bulb and the filament inside it regardless, right (assuming the bulb isn't in a room that's completely dark)? But, what makes a bulb appear to GLOW when turned on? Well, first let's remember some of the fundamental aspects of EM energy from secondary science:



-EM energy can behave like both a wave and a particle

-Waves can propagate through space

-The subatomic particle that is emitted & absorbed when EM energy interacts with matter is called a photon

-Photons have no mass and are charge neutral

-Photons can be created (by emission) and destroyed (by absorption)

-Light - aka EM energy - has a constant speed and nothing can travel faster than it

-All light can propagate through space and it will continue to do so if nothing gets in its way (i.e. something absorbs it)...that's how the light from the edge of the universe manages to reach our night sky. In all those billions of years of traveling, nothing got in the way of those photons! Amazing, huh?

-All normal matter (i.e. not dark matter) emits EM radiation & also absorbs EM radiation

-Energy, mass and momentum must be conserved in a system



For the sake of argument, let's assume the bulb is a classic incandescent light bulb. While all light bulbs emit EM energy in the visible spectrum when on, the mechanics of how each of them achieve that can be quite different. Incandescent bulbs produce light in much the same way that the Sun does - through thermal radiation - albeit on a much smaller and colder scale.



The light bulb contains a tungsten filament, which is a metal with very useful properties. It's very resistant to an electrical current and also has a very high melting point. When the switch is turned on, an electric current carrying fast moving electrons passes through the filament. The interaction of the electrons in the current with the tungsten atoms (the filament) raises the kinetic energy of those atoms. This is a lot like what happens when you rub your hands together to get warm. The filament is resistant to the current, which you can imagine as friction, creating heat. This causes the electrons in the filament to get excited and they jump to a higher energy level. When they de-excite, they emit a photon. The types of photons (i.e. infrared vs. visible, etc.) emitted depends on the temperature of the filament. "Temperature" is really just another word for kinetic energy.



The hotter the filament the higher the energy of the photons emitted. Once the filament is above 3000 Kelvin, it will begin to release visible light photons. At first, though, the temperature of the filament is too low and it only emits infrared energy, which the human eye can't see. In fact, most of the photons emitted by incandescent bulbs are actually in the infrared spectrum, which is why they are so inefficient. It's important to understand that what we see with our eyes is the visible light...not the infrared, even though both of these forms of light make heat (indeed, all light does).



Now, what happens to all that energy when we switch the light bulb off? Well, a few things occur because different types of energy/light were emitted, right? First, visible photons stop getting produced since the filament isn't hot enough anymore. It is still hot enough though, to emit infrared radiation when turned off. In fact, it continues to emit infrared even after it returns to its normal temperature. Its heat is dissipated into the surrounding space the same way the human body leaks off heat to the surrounding space. Those infrared photons will continue to exist until something gets in their way and they are absorbed.



The visible light photons that were produced by the light bulb when it was on will continue to exist too unless they are absorbed by something. Some of these photons maybe got reflected a few times, but eventually all of them were absorbed by bits of matter they interacted with, like the human eye.



Most of the photons that reach our eye don't actually make it to the photoreceptor cells in the retina, which is what allows us to see. Some get absorbed by other stuff in the eye. If a photon is lucky enough to reach the retina, then the photoreceptor cells will absorb it. But one photon hitting one cell isn't enough to make us see. Several photons must hit one particular cell in order to trigger the release of molecules that activate the brain's visual cortex, which ultimately ends up as the image we see with our eyes.



This minimum photon requirement is why humans can't see very well in dim light...there aren't enough visible light photons being emitted for the eye to produce a clear image. This feature of human evolution is also utilized by light bulbs on dimmer switches.
sophieb
2015-02-07 15:25:44 UTC
I figure it's hiding in the wall or it's origin of generation till it's needed. It used to be hiding at the substation but everything is technical now, no more switching substation.

I was trying to figure out where the light goes when the refrigerator is closed. Has anyone gone into the frig to find that out?
Carrie
2015-02-08 21:40:09 UTC
Light doesn't goes anywhere. When we switched off the light, the connection of light and currents get closed. So that light gone off.
Yahoo !
2015-02-06 16:29:01 UTC
Light is produced out of electrons that flow in wires, So when you switch off light bulb, the electron flow changes its pathway and move to its next destination.
anonymous
2015-02-06 23:58:57 UTC
The answer that you are seeking would be more thoroughly and accurately fulfilled by someone who possesses a sufficient allotment of time and, of course, scientific knowledge. Briefly and simplistically, I suppose it could concern a damaged or an exhausted filament(but that would depend on the type of light), also some light bulbs will instantly overheat and burnout if incompatible with the switch, such as when combining any fluorescent light with a dimmer fixture and/or switch, etc., etc. I consider the manner in which you worded this question as a rather legitimate reason for significant difficulty in furnishing the appropriate answer. For example, you indicated "Where does the light go...?", which prompts me to wonder whether you're referring to a light bulb or to light in an entirely different sense? I've more questions than answers, but congratulations on what seems to be a trickily and complicatedly posed question. Again, sorry, though I cannot sufficiently devote myself to this interesting question.
?
2015-02-08 08:42:27 UTC
Light is basically photons, that fade after a while (depending on the strength of light). They are some of the lightest sub-atomic particles. When the supply is turned off, some protons get reflected and others get absorbed (Depending of room items). Then all the reflected light fades away.
?
2015-02-06 13:01:56 UTC
The switch send power to the light turning it on, when the switch contact is broken (off position) the current doesn't flow to the light and hence it doesn't go on.
Frederick
2015-02-07 11:28:56 UTC
Beginnings and endings belong to physical objects, light is not a physical object and therefore, cannot be confined to a room. Nor can it leave a room. In order to travel light would have to move from where it is not, to where it is, life, however, is everywhere. Darkness is brought into existence by the absence of light and is therefore a negation. Negations don' exist.
?
2015-02-06 14:01:29 UTC
There is a light sponge inside the light bulb, and when you use the switch it activates the sponge which absorbs the light.
mduilsam
2015-02-07 18:39:41 UTC
This really is tougher in order to solution compared to We very first believed. It's possible to just like very easily request, "Where will the actual gentle proceed whenever you depart the actual gentle upon? inch Certainly the actual lamp will not hide a person within photons, correct?



Nevertheless, having a small looking, I discovered this particular supply, and today may to try to paraphrase it's solution. Desire me personally good fortune.

Gentle, such as warmth, depletes whenever this incurs some thing. This is exactly why gentle permits us to observe. Whenever gentle strikes a good apple company, it's red-colored simply because all of the photons tend to be soaked up through the apple company Aside from individuals vacationing at a negative balance wavelength. The actual red-colored wavelength bounces from the apple company, strikes all of us within the attention, as well as voila! The red-colored apple company!

And thus, whenever a lamp is actually turn off, every thing within the space absorbs the actual photons they are able to keep, as well as your eye soak up the remainder. It truly is that easy.
?
2015-02-07 14:03:38 UTC
No power, no light. The question is non scientific and more philosophical in nature like the thing as to if there is no one in a forest and a tree falls, is there any noise? Of course there is. The light does not "go" some place if it does not exist. It is not stored anywhere either.
bulruq
2015-02-08 11:04:12 UTC
It is absorbed by the objects it strikes and converted to tiny amounts of heat. Some of it will bounce around a few times if it strikes reflective surfaces but it's all gone within nano seconds. BTW: Why are some of you gassing on and on and ON about the source? WHERE it comes from and how fast it moves is completely irrelevant. It's all about physics, NOT philosophy. Sheesh, I haven't seen so much pretentious technobabble since "Star Trek: The next Generation" got cancelled!
?
2015-02-07 08:32:50 UTC
The light you are seeing in the stars have traveled millions of miles. Some of the light sources, stars, are no longer there. Most things absorb the light. The color you see is bounced back. There are some cool experiments you can do
joseph
2015-02-07 16:49:52 UTC
light is energy, once the switch is off there is no more energy to sustain the light where it originated. thus the light is diffused and darkness arrives once again. I know this because I am so fast that I can be under the covers before it gets dark...
anonymous
2015-02-08 06:14:14 UTC
Since the electricity(power) is being cutoff the filament in the bulb no longer heats up to produce heat and light, so the light and heat just disappear.
mdk68gto, ase certified m tech
2015-02-08 01:25:27 UTC
in a typical light bulb, the source is from an electrically heated filament that excites the gases in the glass bulb. separate the power form the circuit and the heat drops. the light stops.
moongloom
2015-02-06 13:43:46 UTC
Light is made of photons which move at the speed of light (duh!). It may also be represented as EM waves. For light to be seen it must be actively hitting your eyes. For this to happen a source must be generating it and somehow it must make its way to your eyes via direct route or reflection or some other path. If the source stops producing light then the ones it did produce will take their paths and upon hitting your eyes or whatever it is they hit they will interact with the target and either be absorbed or redirected. That is what happens to the already generated light. If the source stops generating more then there won't be any more duh!
Lucky
2015-02-08 11:30:39 UTC
Right... Technically the light is generated by electricity so when the power is off there is no electricity for it to generate so after the the light is sent out( that is what happens, the light travels) there is no generated light...



Simple but yeah
Smokies Hiker
2015-02-08 14:21:10 UTC
The light travels off into space and disappears. Since light travels at 186,000 miles per second, it wouldn't take but a nano-second for the light to disappear in the average room.
wg0z
2015-02-06 18:50:46 UTC
Same place it comes from when you turn ON the light bulb.
Abhishek Akkapalli
2015-03-27 04:05:22 UTC
The connection between electricity and bulb cuts off and hence the bulb stop emitting light. the light emitted by it till then travel to to the maximum distance it can according to its frequency.
?
2015-02-07 01:34:00 UTC
So many long and incorrect answers. After you turn off a light, the emitted light (photons of all wavelengths) is quickly absorbed by its environment. This transfer is from light (electromagnetic) energy into heat energy.
Rafy
2015-02-06 23:20:17 UTC
When switch is on The electron flows & supply power of energy for light. But when I switch off then the electron flows stop & also stop to power of energy supply. That's why light is stop and going where electron flows and supply power of energy..
anonymous
2015-02-06 20:42:55 UTC
I goes back into the light bulb
Jackboot
2015-02-06 19:45:13 UTC
The energy has been spent and so dissipates, just as does water from a hose when you turn off the faucet. Like the water, eventually the photons of energy dissipate completely into another form. It just happens more quickly with light.
?
2015-02-09 10:18:54 UTC
Bulbs don't mare light, they absorb darkens and appear to generate light! Darkons hide their surroundings, so absorbing them makes things appear. When you turn off the light bulb, it no longer absorbs darkons and they hide their surroundings from eyes again! Simple.
j
2015-02-08 04:12:59 UTC
Isaiah 9:2New King James Version (NKJV)



Isaiah 9:2 The people who walked in darkness

Have seen a great light;

Those who dwelt in the land of the shadow of death,

Upon them a light has shined.
?
2015-02-06 20:44:30 UTC
Light is nothing but low energy photons so applying the linear energy transfer formula dl(x)=-I(x)XnXoXdx

Where I= Initial intensity

n=number of atoms/cm3

s or o= a proportionality constant that reflects the total probability of a photon beings scattered or absorbed.

d= the incremental thickness of material transversed (IN THIS CASE AIR)



So by looking at the formula a single light photon NEVER goes to nothing, although it's energy is very small it never ends(theoretically) WATCH IT!!!!!!!!!!!!!!!!!! DUCK YOUR HEAD, OH GEEEEEEEEEESSSS A SMALL PHOTON OF LIGHT JUST RAN INTO YOUR HEAD AND YOU DIDN'T EVEN KNOW IT!!!!!!!!!!
Injeaner
2015-02-09 06:57:19 UTC
That is a simple answer really. Light constantly moves. When energy is disconnected from the light source, it stops producing photons. On how it produces photons depends on the material of what was producing them. The light that was produce travels away, gets absorb, or gets scattered until it is gone.
Dee in CO
2015-02-06 20:19:28 UTC
You've got it all wrong. Check any schematic--the lights are always named DS01, DS02. That's because light bulbs are actually darkness suckers. When you turn them off they stop sucking up the dark.
Harley Drive
2015-02-08 19:29:45 UTC
so there ARE some working phones at y@h00, when you switch off the electricity the photons that are about to leave get sucked back into the filament or mercury vapor depending on the type of light you have
anonymous
2015-02-07 06:37:24 UTC
It goes out the window and into my mom's belly button.
?
2015-02-06 13:40:01 UTC
Very simple. When you flip the switch the light goes out or off which ever you prefer.

I Cr 13:8a
We left and returned!
2015-02-06 17:17:20 UTC
Traveling at the speed of light, it zips back into the bulb, leaving darkness waves behind it.
Naguru
2015-02-08 02:43:03 UTC
I agree with you. The answer is, as you say in the middle of your narration, "Well, the answer is none."



Let us unite all moral forces to cooperate with us. I hope my idea is right.



I think it coalesce with the filament. (An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light which produces light with a wire filament heated to a high temperature). I mean that filament.
â—„WhoMeâ–ş
2015-02-07 11:11:15 UTC
It must get distributed to the Politics, Polls and Surveys and Religion and Spirituality Sections of Yahoo Answers, since there is some absolute brilliance there. I do hope the team doesn't mind since they seemed to be having some fun with this question, that I had some fun with the answer :)
anonymous
2015-02-06 13:57:51 UTC
Outstanding. The Yahoo A*****s Team is now asking questions that are best answered in junior high science classes. Will you guys next ask us questions about the names of various country's capitals? Or maybe ask us to give various explanations of the Pythagorean theorem? Or maybe you'll just ask us to name all the Presidents or recite the Preamble to the Constitution?
?
2015-02-08 09:26:51 UTC
Light is electromagnetic wave, it doesn't need the medium to

transmit. As the light turns off, the electromagnetic

wave disappears. That's why Newtonian mechanics failed to

explain the phenomenon of light.



According to E = hf (proposed by Max Planck),

light also can be turn into heat energy.
?
2015-02-06 22:25:37 UTC
Oh, I know, I know where the light goes, after the switch is turn off. It goes back to the Power Company. !!!
?
2015-02-08 05:08:46 UTC
The light just disappears because the source of the light is gone. The light has to come from somewhere.
?
2015-02-08 14:37:04 UTC
Turn off the bulb it wont emit any light
DemonOfSarila
2015-02-09 04:16:36 UTC
Really? When it's on it's making energy that we call light. When you switch it off, it stops getting power making that energy. The light doesn't "go" anywhere, it's not being made anymore.
Thomas
2015-02-12 04:32:00 UTC
French scientist Antoine Lavoisier postulated a theory which says that "nothing is created, nothing is destroyed, all is transformed". This means that when you turn off the light, the energy in it will simply transform into another form of energy, for example heat.
Jonathan
2015-02-06 23:06:38 UTC
By turning off the lightbulb, no more electrical energy is converted to light. The production of light is by the conversion of energy from one form to another.
anonymous
2015-02-10 11:37:24 UTC
Th light is not created when the switch is off, so the light does not go anywhere its just not created.
?
2015-02-09 06:36:28 UTC
when you switch off a light bulb,light goes back to its source and the "switch off"became Black hole for light? or if switch on is like a living star which emits light and switch off like dead star or black hole who instantly 'inhale' the light and light can not escape
anonymous
2015-02-07 05:44:51 UTC
The answer is so simple:



The light (electromagnetic waves) is absorbed into the air and other surrounding objects causing a negligible temperature rise within them.
MarcAnt
2015-02-06 20:50:17 UTC
The light goes (off) stops lighting, emitting, glowing etc, because the LIGHT switch is in the off position,(open circuit) __/ __ , The switch in the on position (closed circuit) __/\__ the Light goes (on) . starts lighting, emitting , glowing etc, just like new!
yankee_sailor
2015-02-06 18:56:50 UTC
It is sucked back into the bulb at the speed of light....which is why you never see it happening.
anonymous
2015-02-06 18:20:28 UTC
It goes to a neighbors house in the form of alternating current. If no one needs it it continues being transferred in the power lines.



The light in your home is a conversion of alternating current to light. Without this conversion it remains alternating current.
Lynn
2015-02-07 02:44:00 UTC
The light doesn't go anywhere. It's just not switched on. (I have no idea if this is the right answer but it works for me LOL)
Snow Queen
2015-02-07 11:42:04 UTC
Light travels.
?
2015-02-07 12:12:07 UTC
Without a light source there is no more propelling force. The existing light sacs dissolves into the atmosphere so that they are no longer detectable.
science
2015-02-09 09:45:59 UTC
simple as the question is light is a form of electromagnetic wave which has both visible bands and non visible bands.

the property of wave is to travel.

there is no such technology exist in world to make light standstill. though it had once tried in harvard university

so the answer to this is the light travels and dispersed and some times absorbed by photons itself. made simple to make you understand
Candid Chris
2015-02-06 16:55:33 UTC
The light bulb is your 'boss', you call for an appointment and the boss's secretary says 'He's out of his office'. So your boss is not 'Off', he's Out and thus the light is out of the office.

Ask your 'boss' about it, you'll see the light soon enough!
Vinegar Taster
2015-02-07 07:46:39 UTC
It doesn't go anywhere. Once you cut off the source of energy , the light ceases to exist.
x4294967296
2015-02-06 20:50:19 UTC
The light needs constant electricity, or it dies. Light never commits sins, so it goes to Heaven when it dies. That's why there is so much light in Heaven.
?
2015-02-08 02:13:10 UTC
Simply put, it ceases to exist. Turn on the switch, the light appears. Its speed is of no importance pertaining to your question.
Alan
2015-02-07 20:16:26 UTC
The lights photons' energy gets absorbed into the opaque objects it hits
Leo L
2015-02-06 14:46:52 UTC
Actually, what we call light bulbs actually work by suctioning darkness and storing it. That is why a lightbulb that no longer works turns black. It is full.
nanny ogg
2015-02-07 15:14:33 UTC
Thanks for asking an interesting question, makes a real change,however I cannot answer, but you already have some excellent answers, but personally I think the light goes to bed for a rest or it dissapears just like the energy of money!!
peter
2015-02-09 09:58:52 UTC
How many flies does it take to screw in a light bulb? Two but don't ask me how they got in there.
Edie
2015-02-07 04:12:19 UTC
when you turn off a light bulb, the filament doesn't receive any heat so therefore doesn't produce any light.
Jackie M
2015-02-08 09:53:01 UTC
The simplified version is that it goes off as there is no electrical supply going through the cirguit to make the filament give us light
J. C.
2015-02-07 18:52:11 UTC
It returns to the source: Harold Klemp, The Living ECK Master.
Jamie
2015-02-08 09:34:27 UTC
What if...

The light goes inside the light thus there being no light?
?
2015-02-06 20:25:37 UTC
Changing the switch position turns ON THE DARK IN THE ROOM ,YA SILLY ANSWERS TEAM
Joe
2015-02-07 05:34:33 UTC
Probably the same place that the rubbish from the waste bin on the computer go's to I bet you have a lot
Martin S
2015-02-07 02:54:14 UTC
I tried it. Turned out all the lights in the flat and went searching.

Finally I found it in the fridge.
Der Bomber â™›
2015-02-06 14:02:55 UTC
Light just goes blank
Tommy
2015-02-07 17:44:21 UTC
it get scatted onto everything and some small heat is there when it hits non see throught objects it will scatter some more until the light enters your eyes or end up just wasting it small amount of energy hitting something tranfoering some heat
?
2015-02-08 16:30:39 UTC
The light destroys itself due to molecular structure of the N proton which destroys itself when hit with matter
thebax2006
2015-02-08 04:33:31 UTC
Now it looks like yahoo needs to ask dumb questions to keep low IQ readers busy! What's next? Will the water in my sink keep running forever if I don't turn the handle off?!
Kaitlin
2015-02-08 04:21:55 UTC
Narnia
Hans Fredrik
2015-02-06 16:01:54 UTC
The stream is cut off, the light is nothing but... oh f*ck it, 90% of people here spent hours to answer this, good night.
Battle axe
2015-02-08 09:07:13 UTC
Yahoo answers isn't smart enough to switch off a light bulb if a Trojan wasp is on it..............lol

YAT members got stung by a Trojan wasp ...............a virus poem
Concerned
2015-02-06 15:05:12 UTC
The switch acts as a light-sucker. The light's still there, you just can't see it. ;-)
?
2015-02-10 03:06:04 UTC
Think of an electric circuit like a chain on a bike , its all joined and as soon as you make a movement on one side it affects the other side , Read "electrical engineering 101" amazing book
anonymous
2015-02-08 21:40:58 UTC
According to Paul Murky of Murky Research, Inc. it goes far within Uranus.
gg
2015-02-08 13:11:23 UTC
The light goes to the recycle bin in my PC...Conservation of Energy!
Sunshine Suzy
2015-02-09 09:16:12 UTC
Back into the bulb where it came from.
David
2016-07-11 10:07:04 UTC
Military Grade Tactical Flashlight - http://FlashLight.uzaev.com/?nxEe
Sir_Xcaliber
2015-02-08 02:56:31 UTC
The question is simple. Why not give it a simple answer?

The answer is, the light goes out.
?
2015-02-07 00:58:56 UTC
It speeds out at the speed of light until something gets in the way .. then it is absorbed .
anonymous
2015-02-06 11:29:02 UTC
It's emitting light, it's not actually there. Then the electron flow stops, then the emission is no longer present.
Traveler
2015-02-06 17:43:43 UTC
You may as well ask where does the water go when you turn off the faucet? Enough with the silly questions.
Stu
2015-02-07 09:07:35 UTC
Sorry, but the question seems too generic. You do not qualify what kind of "light" ,( ie. white light) as we perceive it to exist in the frequencies that we can ACTUALLY see it , or something else.
Don S
2015-02-07 16:27:46 UTC
For anything to go somewhere, it has to moved. Light does not move so it does not go anywhere when turned off nor will go anywhere when turned on.
?
2015-02-07 20:29:28 UTC
The waves of light are absorbed like sound would be
XTX
2015-02-09 06:08:36 UTC
when you turn the light bulb on it escapes the globe into brightness and when you turn off the light it remains contained inside the globe and is naked to the human eye .............it is now you see it when on and then when off you don't ....
Aesthetic
2015-02-07 03:15:38 UTC
the light is something Physical , it's collection of moving protons , so they reflect by crashing into objects , or get absorbed into Physical objects tooo
Nicole
2015-02-08 17:52:49 UTC
here is a simple answer.



the light switch is a bridge and when you flip it you break it so nothing can cross anymore
Russell Pancakes
2015-02-06 23:49:30 UTC
light is both a wave and a bunch of particles. You know where waves go when you are at the ocean and you know where particles go when you throw sand at a swimsuit model so q e d
Kini
2015-02-06 13:59:44 UTC
The light dims if the filament is not reacting to electric current.
3T
2015-02-08 23:36:56 UTC
for this the electron are faster or photons _ the later to finished under our skin to active the vitamin D 3 -our usefully friend

- and former stand and domestically at capacitors - awfully cold - dark_ our cleanest Energy
Scorpion
2015-02-06 19:18:50 UTC
nowhere, you basically cooling down the metal inside the bulb. like putting out a fire
thisbrit
2015-02-07 14:57:04 UTC
Or how about where does the dark go when you turn ON the light?? Hmmmm???
Atsa me Atsa you?
2015-02-08 18:40:28 UTC
Its gets sucked quite quickly back into the bulb.....hahaha
ubwrong1
2015-02-07 14:25:36 UTC
there is no light only darkness so when you turn off the switch darkness escapes from the dark sucker
Bryce
2015-02-06 19:44:46 UTC
Where wouldn't the light go?
?
2015-02-09 23:19:48 UTC
the elves that live inside of the lightbulb have these really small but crazy power vacuum cleaners designed to suck the light back in to the lightbulb when they are done with it
anotherredman
2015-02-06 15:01:03 UTC
It goes to my power bill. Now that you know that and you know the speed of light, what is the speed of dark?
spacemissing
2015-02-08 15:21:30 UTC
The light doesn't "go" anywhere.



It stops coming from the lamp.
Grinning Football plinny younger
2015-02-07 10:39:40 UTC
Into none being, that is to say everywhere. Harry Potter had the same question but it was regarding a candle.
?
2015-02-06 14:48:31 UTC
It goes to the Holiday Inn
Albert
2015-02-08 07:44:26 UTC
AFTER SWITCH OFF, LIGHT GOES TO YOUR BANK ACCOUNT.
Delphi
2015-02-08 05:38:50 UTC
The same place the water goes when you turn off the tap.
James
2015-02-09 04:27:57 UTC
The light's always there, my friend...It's just waiting on you to it make shine again.
SpideyGIRL!
2015-02-06 22:58:29 UTC
light would get refracted faster by the air surrounded by it after a few micro seconds.
?
2015-02-09 03:28:51 UTC
Light speed. Enough of it can be seen in orbital photography.
(A)
2015-02-09 11:19:26 UTC
It no longer will be produced because the electrical resisence energy has been shut off .
anonymous
2015-02-08 12:13:42 UTC
to the room with no light
Shayshay...
2015-02-09 20:30:17 UTC
Free.
?
2015-06-28 15:29:40 UTC
Nowhere. Light comes from burning watts, and when you turn it off, they stop burning.
mt75689
2015-02-09 02:42:20 UTC
It goes to the same place that all the little letters go when you hit delete on your keyboard.
Barcode
2015-02-07 04:09:45 UTC
The same place 'white' goes when snow melts!
BBean
2015-02-08 05:46:52 UTC
It is hiding in a dark corner....just flick the switch on your flashlight and you can find it.
IIIII
2015-02-08 22:04:44 UTC
Who cares
?
2015-02-06 17:07:37 UTC
The light does not "go" anywhere, it just stops emanating from its source.
HOBSON BEAR
2015-02-08 22:02:41 UTC
to much answers all ready which shed some light
?
2015-02-07 08:49:24 UTC
Into the dark of course
Emily J
2015-02-09 05:01:20 UTC
Duh, when you turn off the light switch you are just turning off the power to the bulb and it goes off.
anonymous
2015-02-06 11:49:50 UTC
God provided light, and he taketh it away. It's best not question these matters.
?
2015-02-06 19:50:01 UTC
Luminous body is gone, so, there will be no natural light again.
Christopher
2015-02-06 21:33:23 UTC
it goes out/off love the Einstien explanations
Variable 46
2015-02-06 16:39:40 UTC
Usually out for a burger and fries, then maybe a show.
Jacob Cutrer
2015-02-06 17:57:07 UTC
Out.
mlauralkb
2015-02-06 12:15:04 UTC
Interesting...I was going to say that it kinda absorbed itself, like a black hole, but I don't think it's much scientific... O.o?!



See ya! ;)
?
2015-02-09 08:38:37 UTC
It goes into the Refrigerator
Kay
2015-02-09 00:03:02 UTC
I always assumed that it just went away, but I guess that sounds ignorant amongst you guys who seem to know what you're talking about. :)
anonymous
2015-02-08 17:39:22 UTC
I can't believe anyone bright enough to work a computer is dumb enough to ask a question like this.
anonymous
2015-02-08 04:53:42 UTC
Into the fridge. Just open the door and look.
Rukawa
2015-02-06 18:42:04 UTC
Read a book.
?
2015-02-06 15:44:37 UTC
its sucked through tiny holes in the floor and goes to China.
?
2015-02-08 10:29:17 UTC
hello, common sense, light goes away goes byebye when turn off the light. darkness now consumes you congratulations your light is gone , welcome to the dark side
Battleaxe
2015-02-09 02:37:57 UTC
F***ing Magic
Yorrik
2015-02-07 00:32:40 UTC
More important the as yet undiscovered speed of dark - the opposite of the speed of light, I guess.

https://www.youtube.com/watch?v=vzJCoJVgKA8
Xander
2015-02-08 16:10:45 UTC
simple. it leaves the bulb.
Med 10
2015-02-06 16:50:00 UTC
Heat.
?
2015-02-06 15:48:09 UTC
It goes off.
nobody
2015-02-06 13:58:34 UTC
In the dark
Albert W
2015-02-06 15:22:27 UTC
The real question is "Where does the dark come from?".

Al
Clams
2015-02-07 21:03:11 UTC
Nowhere you break the circuit and the conductivity ceases.
?
2015-02-07 14:03:42 UTC
It hides in the dark
Yamanopolis
2015-02-09 19:47:20 UTC
That is an interesting Question .. My Guess would be that it just get absorbed ( By the walls, the furniture, etc. ). Please tell me if I am right or wrong.
?
2015-02-09 10:53:28 UTC
It vanishes into the wall
anonymous
2015-02-06 19:25:52 UTC
goes to hide same place where the water goes when you close the tap
Willie
2015-02-06 17:38:29 UTC
The gas will take a nap.
Jimmy
2015-02-09 11:19:49 UTC
life
?
2015-02-06 15:54:50 UTC
Nowhere
robyn
2015-02-07 14:30:27 UTC
hey Joanne love your answer, I wanna marry you! Love smart women!!
Amanda
2015-02-09 06:59:09 UTC
It goes off.
Vi Spex
2015-02-06 13:19:43 UTC
back to the source
anonymous
2015-02-06 11:07:00 UTC
It falls on the floor!
Amina
2015-02-06 11:07:50 UTC
It stops because the circuit is cut... I think
?
2015-02-08 20:54:18 UTC
Light did not GO anywhere......
?
2015-02-08 04:24:58 UTC
over to the dark side
?
2015-02-06 12:45:16 UTC
The light goes OFF when you turn it off! :O



~Cindy! :)
manuel_y_g
2015-02-08 22:46:46 UTC
Really you're kidding everybody...
Walter
2015-02-07 11:32:09 UTC
WHERE DOES IT GO????????????

"Turn out the ight and come to bed"

Them's just the words my missus said,

Oh how I wish I'd done just that,

Cause now I'm loony as a bat.



Turn out the light, I turned the thing,

And then I got to wonderig,

"Where does it go", I blurted out?

"Where does it goes when it goes out"?



"I wouldn't know," the misus said,

"Forget it now and come to bed,"

I turned the blamed thing on again,

and wondered, "now where has it been"?



Cause here it was, so bright once more,

Did it come in the bedroom door?

That's it, I thot, without a doubt,

That's also where the thing went out.



I've solved it now, just used my head,

I'll close the door and go to bed,

I closed the door against the hall,

and turned the switch upon the wall.



The room was dark-- IT COULDN'T BE,

I scratched my head -- now let me see,

the bathroom door, how dumb of me,

I'll close it too and THEN WE'LL SEE.



The room was dark, we'll leave it so,

I closed my eyes and off I go,

To shut the door --what's that you say,

why yet, I see quite well this way.



I banged my knee against a chair,

and fell across the dresser there,

right thru the glass I poked my head,

"WHAT IN THE WORLD," my missus said.



"Relax, my dear, it's only me,

At last I've solved it, don't you see,

I'm merely gonna close the door,

an then it can't come in any more."



I staggered on, I'll do or die,

the door jam smacked me in the eye.

I jerked the door, then let it go.

Good Lord, I've closed in on my toe.



The missus says, "turn on that light,

I'll bet this room's an awful sight."

"Twon't do no good," I said with pride,

"The doors are shut and it's ouside."



"Ill do it then," the missus said,

I heard her getting out of bed,

she took two steps and down she fell.

Then cried aloud, "NOW WHAT THE HELL?"



I bent down quick to help my dear,

the bed post jabbed me in the ear,

I barked my shins against the bed,

"Where is that switch," the missus said?



"Twon't do no good," I tried to shout,

"It can't get in, I've locked it out."

She turned the switch --my uppers jamed,

'IT'S IN AGAIN, well I'll be dammed.



"My God, the mess," the missus cried,

"You broke my mirror, darn your hide,

You/ve gone to far -- I'll call the law,

no, better still, go home to ma."



"Well I'll be dammed," I said again,

"how coud that light have gotten in?"

I started pacing on the floor,

WHY SURE -- THE KEYHOLE IN THE DOOR.



I whittled out some chunks of wood,

and filled both keyholes up real good,

I have you now, my little lark.

I turned lthe switch --THE ROOM WAS DARK.



"it cannot be," I cried in vain.

But wait, WHAT'S THAT --the window pane,

The shade's half up -- SUCCESS AT LAST.

I pulled it down and made it fast.



Then, going slow, so not to fall,

I reached the switch upon the wall.

"I HAVE IT NOW," I said again,

I've locked it out, it can't get in.



I turned the switch, THE LIGHT CAME ON

AS THO THE THING HAD NEVER GONE--

"AHA" I said, with bursting pride,

I'll leave it on and step ouside.



I put my bedroom slippers on

and stood outside upon the lawn,

I SEE IT NOW-- good guess I made.

It's getting out around the shade.



"I should have known," I said again.

Then went and got some two by tens,

and took them in that room so bright.

Then nailed the windows over tight.



Success at last, I'll go to bed

and rest my weary aching head.

I crawled between the sheets so white,

i'M GLAD I SETTLE THAT TONIGHT.



I tossed and turned, NOW WHAT'S AMISS?

Could that damn light be causing this?

It's shining bright, I've fenced it in,

I'd better let it out again.



I ope' the door, and then I shout,

"I've kept you in, now go on out,"

But NOT, IT STAYS, it's stubborn too.

Well, I''ll be darned, now what to do?



AH YES, THE SWITCH, I'll turn it so.

The door is open -- out you go.

And now you're out, I'll close the door

so you can bother me no more



The room is dark-- TOMORROW FAME.

The world will now endear my name.

"I'll turn the switch once more," I said

to just make sure, then go to bed.



I turned the switch, IT'S BACK AGAIN.

Now how the world did it get in.

The windows both are nailed up tight,

the doors are closed,--BUT THERE'S THE LIGHT.



The switch, I thot,-- what does it do?

Is that a pipe the light goes thru?

I'll get my flashlight from the hall

and have a look inside the wall.



I turned the light off once again,

jerked out the switch and looked within.

There's no pipe there that I can see.

But wait --what can these wires be?



I looked the over carefully.

They have no holes, that's plain to see.

No light could get thru them at all.

I nailed the switch back on the wall.



I turned the light switch once again.

The light should have come on right then.

I scratched my aching head once more.

I DIDN'T OPEN UP THE DOOR.



Both doors I opened up real wide,

but still no light came back inside the windows

--SO -- I soon fixed that.

Removed the boards in nothing flat.



I've turned the switch, to no avail.

I've worried till my cheeks are pale.

Please tell me what it's all about.

WHERE DOES IT GO WHEN IT GOES OUT?



Poem written by Willian Hunden
SunnyKiss
2015-02-08 01:04:34 UTC
See the explanation above! I have no other explanation!
anonymous
2015-02-06 17:27:29 UTC
"off" . where does God go when you stop thinking about him....?



dude's not real something that doesn't exist can't disappear.
Capable
2015-02-06 14:17:42 UTC
It goes out.
gig
2015-02-12 23:37:37 UTC
It stops shinning because it has no electric current to shine.....
EUGENE
2015-02-06 11:52:47 UTC
IT ESCAPES BACK TO EZEKIA'LS WHEEL TO DE-IONIZE FROM THE ELECTRO-MAGNETIC IMPULSE
Dave Stewart
2015-02-08 06:18:20 UTC
http://youthsalary.com/?user=2367
Jovane
2015-02-08 08:06:15 UTC
http://youthincome.com/?user=8268
kat
2015-02-09 20:30:47 UTC
atheist logic would say it pops in and out of existance
?
2015-02-08 10:26:51 UTC
Anywhere
?
2015-02-08 16:37:12 UTC
it goes out. like a flame
?
2015-02-09 10:49:59 UTC
they turn into heat energy and fade out
?
2015-02-08 01:44:51 UTC
No electricity
Big Spider on Your Pillow
2015-02-07 21:41:18 UTC
It goes out.
?
2015-02-07 18:54:46 UTC
It goes out.
?
2015-02-08 09:43:32 UTC
Away
Roy
2015-02-08 09:37:51 UTC
Great Ques...
CECIL W
2015-02-08 01:50:11 UTC
In to space.
?
2015-02-06 21:37:35 UTC
back to thomas edisons grave
Brint
2015-02-09 03:33:44 UTC
I don't know
Godsproblemchild
2015-02-06 18:48:43 UTC
Someplace else.
?
2015-02-06 23:20:30 UTC
its goes back into the bulb, duh. its the only logical explanation!

the bulb gives light, it can also take it away.
Marshhawk
2015-02-07 18:46:55 UTC
In the cord.
Jim
2015-02-07 21:42:13 UTC
It goes 'away'.
anonymous
2015-02-07 18:26:58 UTC
Don't know and don't care
anonymous
2015-02-07 08:22:04 UTC
you dont turn it off, it goes out
?
2015-02-09 02:55:18 UTC
On my head it goes!
Kawaii
2015-02-07 14:57:39 UTC
space
?
2015-02-08 22:50:13 UTC
I don't know.
anonymous
2015-02-09 20:35:19 UTC
it dies and goes to heaven, that's why heaven's so bright
Texas Czech Chick
2015-02-06 14:11:55 UTC
It goes away.
Cathy
2015-02-09 06:56:44 UTC
why do people usually sneeze twice
Menachem
2015-02-08 19:34:05 UTC
it turns into heat and disintegrates
sinic
2015-02-06 13:11:50 UTC
Well.........nobody knows.......but....The Shadow knows.........maybe Brian Williams could tell us.....
norm
2015-02-06 22:37:02 UTC
my dog smiles with his tail
Cloud
2015-02-08 13:14:01 UTC
asd
Missy
2015-02-08 02:17:42 UTC
it went to sleep
Matt
2015-02-08 15:42:53 UTC
it fades out
anonymous
2015-02-06 22:07:56 UTC
off?
Pearl L
2015-02-06 12:38:24 UTC
it goes bye bye
The Beaver
2015-02-09 05:36:04 UTC
Simple....................the absent of light is darkness.....simple
Ali
2015-02-06 20:28:21 UTC
its like asking where you go after you die :)
bette
2015-02-07 19:19:15 UTC
THE MOON
denis
2015-02-08 18:07:10 UTC
piiiii
Shawn
2015-02-08 16:06:08 UTC
dfsdsf
?
2015-02-07 10:46:36 UTC
I don’t know
pinky
2015-02-07 12:17:38 UTC
it dies off it disappears like fire
Chinese Monster
2015-02-08 14:44:12 UTC
It goes away...
michael
2015-02-08 23:45:01 UTC
back to hell where it belongs
?
2015-02-07 08:24:14 UTC
im not that smart
?
2015-02-08 06:52:08 UTC
it disappears
River Euphrates
2015-02-09 11:06:42 UTC
Back up your ****.
brooke
2015-02-07 06:00:45 UTC
reuse it
Joseph the Second
2015-02-07 19:49:18 UTC
-Into Infinity ( & Beyond ). :)
Doug
2015-02-07 09:41:26 UTC
it goes AWAY
?
2015-02-08 14:57:48 UTC
Mind blow.
Billy Butthead
2015-02-08 02:12:55 UTC
It zips away at "C".
?
2015-02-09 03:03:27 UTC
where do they go except being absorbed by their environment? thanks.
Oni Raptor
2015-02-06 17:24:59 UTC
away.
anonymous
2015-02-07 10:46:01 UTC
.


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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