What happens to light in a mirrored box?

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How much light is lost when reflected?

Mirrors reflect between 85\% and 99.9\% of the light which is incident on them. Aluminium and silver mirrors reflect about 90 and 95 percent of incident respectively. These are the most common types of mirrors used in day to day life. 99.9\% reflection is only found in perfect mirrors such as dielectric mirrors.

Is a mirror 100 percent accurate?

Aside from being reversed, both (mirrors and photos) are accurate. The mirror or camera does not affect the look: it’s the apparent distance from the camera to what the camera sees. Because your head and body are 3-dimensional objects, they look different from close up versus from far away.

Can mirror reflect laser?

Yes, it does. When a laser bounces off of a mirror, some percentage of the light is absorbed by the mirror because mirrors can not completely reflect light. The energy that was used to power the mirror goes out as heat, so there is less energy in the laser than what you initially fired.

Do mirrors refract light?

Ideally, no. Mirrors reflect, not refract. A mirror is a reflective, smooth surface. These are usually pretty fragile so they get coated in something much much tougher: glass.

What happens if a light bulb has a mirror on it?

If the bulb has a perfect mirror on it, then no light can be emitted from it, because it is opaque from the inside. In order for some light to get out, the mirror cannot be perfect, which means light can get back in and be absorbed and converted to heat. Welcome to PF. Correct, if the box were perfect, the light would bounce around forever.

How far apart do mirrors need to be?

If you can make the mirrors 99.9999992\% efficient, you only need to put the mirrors 10 apart from each other. If you have a 1 meter mirrored box made out of 99.999\% efficient mirrors and let light bounce around it, the light should still be at 10\% intensity after .00077 seconds, and 1\% intensity after .0015 seconds (1.5 milliseconds is not bad!

How can you tell if there is light in a box?

There is a perfect box with with no gaps or cracks, with mirrors on the interior walls of the box. There is also a light bulb which can emit light but reflects any that goes upon it (with a super two-way mirrored surface, perhaps?). If one switches the lightbulb on, then there is light in the box.

What is the ray of light that leaves the mirror?

The ray of light that leaves the mirror is known as the reflected ray (labeled R in the diagram). At the point of incidence where the ray strikes the mirror, a line can be drawn perpendicular to the surface of the mirror.