It depends I think on how strong the light is, or the strength of the light source because eventually the light would reflect so much it wouldn't be able to go on I'd imagine. I don't know much about the physics of lights myself but that I believe to be a reasonable assumption. What I'm more interested is standing in such a room. One made up completly of mirrors on all sides. That would be crazy to stand in and look around in because everything would look like one big tunnel in all directions it would make your head hurt most definitly.

MIB had the idea right when they made a room completly white so it looked like it had no walls or end.

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The idea was that turning the light on, then off, if it would be able to continuously reflect. We now know that this is not possible. And if the light was inside the mirrored room it would work even less, because the light bulb would not reflect the light back (though that wouldn't be a problem if the light was on, but then the whole point would be violated. with a light on inside the room it is the same as a light being on outside the room except brighter), and hence absorb some of the light so when you did turn the light bulb off it would end up absorbing most of the light.

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I completly agree with this statement, we will never know, because there would be lot's of variables, like what type of mirrors, what temperature, space, etc. and where would the light bulb go into the room and scientists wouldn't be able to record results cause it would cause a system failure.

I Guess I can attempt to fill a room with mirrors and a light bulb.

But, I think that if u put a light bulb in a room of mirrors and leave it on, the room with get hella bright, and you wouldn't see anything cause it would be so bright.

Thats just oen mans oppinion, so post your oppinions, before this "hot topic" is overloaded with posts.

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Here is some fun physics. The same problem came about with the idea of black-body radiation. A black body is a perfect absorber of energy and through about five textbooks of physics it also must be a perfect emitter. the setup described at the beginning of this post is very similar to that of what we use to simulate black body radiation.

The only change is that the box was evacuated and light was shined in an actual hole in the side of the box. At different temperatures there is different proportions of frequencys emitted.

if you could find a perfect mirror you could make light bounce around indefinitely if the box is completely evacuated. Only certain frequencys of light will actually be reflected because a mirror dictates that the light reflected has a 'node' at the surface of the mirror. a node is a place that there is no change is position. in this case the electric and magnetic fields are both zero in a standing wave on a string there is no vertical motion.

with a substance in the box there would be dispersion of light and some energy of the light would be lost in colliding with the air molecules which would then heat up the box. this is not good given that you could easily transfer 1000 watts of energy using a good halogen light bulb.

another loss would occur as does in high intensity light. In potentially high density photon regions it is possible that two photons could collide (it's been proven they can and do!!) and in doing so would create a particle, most probably a electron or other charged particle. an anti particle would also be created( conservation of charge). the antiparticle would annihilate something in the wall of the box and the electron( or other charged particle) would act as a free radical and destroy compounds in the wall of the box. This occurs quite frequently but it's effect on let's say a spot light is so small that in a thousand years no visible damage would occur. it is quite a different story inside the box. all the damage would occur to a relatively small area (aka: the inside of the box) instead of being able to be spread out over the atmosphere and subject.

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If one had a vacuume with mirrors that were absolutely perfect, it may, in theory, be possible for the light to reflect forever (I assume if one could look inside, although that would release some light, one would simply see the same image being reflected back until it was too small to see, like what happens when you put two mirrors together). Of course, since any light that would leave would mean the amount of light inside would decrease, one could never actually see what's inside, so essentially, it's a loaded question (like the question "can God create a rock too heavy for himself to lift?"). In theory, though, it's possible, but only if there was no light absorbed either through air molecules nor through the molecules in the mirror.

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