Light (Where does it come from... Where does it go?)

[The20]

Question: in a room that is completely filled with mirrors, would the light ever vanish?
Or would it be mirrored until it finally hits something that isn't a mirror (Like the observer)?

[Shaviv]

The20

Question: in a room that is completely filled with mirrors, would the light ever vanish?
Or would it be mirrored until it finally hits something that isn't a mirror (Like the observer)?

Even if the mirrors were perfectly reflective (impossible, at least by current understandings), dust in the air and the air itself would absorb the radiant energy and convert it to heat.

[VorpalNeko]

Which will just convert the light into thermal radiation, so what you'll eventually get is a photon gas at equilibrium temperature.

[The REAL easter bunnuh]

light comes from matter.
when the flame ceased to exist, so did the light.

[Morberticus]

The20

Question: in a room that is completely filled with mirrors, would the light ever vanish?
Or would it be mirrored until it finally hits something that isn't a mirror (Like the observer)?

The sytem (the mirrors, the light, and any matter inside) would eventually come to thermal equilibrium, so you'd end up with some slight and temporary increase in temperature, and a blackbody spectrum of radiation. Even if the mirror reflectivity is high, the initial visible light would be absorbed incredibly quickly, due to the speed of light.

[edit] - Seems this was answered already. I must learn to red threads.

[Shaviv]

The REAL easter bunnuh

light comes from matter.
when the flame ceased to exist, so did the light.

Flame is not a substance, it's a process. neutral