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absolutly no light, all is reflected and you had a little one way mirror about one millimeter in diameter in which no light could escape from the shere(it could only enter) and you shone in with a high power laser, what would happen?
would it heat up and explode or would there just be an intense build up of light or what?

2006-06-17 06:28:27 · 4 answers · asked by maikellysummit 2 in Science & Mathematics Physics

4 answers

The effect you speak of, really doesn't even require perfect reflection or a one-way mirror. In our day to day experience, if you turn of the light in a closed room - it gets dark...immediately.

However, on very short time scales, a high powered light source beamed into a cavity can result in a an internal radiation field more intense than the light source itself.

In some inertial confinement fusion experiments, scientists fire lasers into such cavities ('holraums') to achieve radiation intensities high enough to cause small capsules to implode ablatively.

2006-06-17 06:48:35 · answer #1 · answered by Ethan 3 · 3 1

Your impossible box absorbs no energy. It reflects light perfectly. If you shine a light into it, it will bounce around for ever. No energy at all will be transferred to the box. It will not heat. It will not cool. Nothing will happen.

2006-06-17 16:46:54 · answer #2 · answered by Epidavros 4 · 0 0

You describe a perfect "black box" which absorbs all energy entering it and lets none escape. The box continues to get hotter until it no longer functions as a black box because it melts or explodes.

2006-06-17 13:46:29 · answer #3 · answered by Frank N 7 · 0 0

I have no idea, I am into both science and science fiction but I doubt I would ever think anything like that up, why don't you build it and find out

2006-06-17 13:33:55 · answer #4 · answered by Anonymous · 0 0

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