Re: light between the mirrors


Hayk wrote:
Suppose you are in a dark room.
There are two mirrors that are parallel to each other.
And you have a lamp between them.
Like this.
| |
| <- L | L - is the light
| |
You are turning on the light and after a moment yout are turning it
off.

Extremely poor description of an experiment. I presume you are
interested in THEORETICAL physics!

What will hapen if
1) the mirrors are ideal
2) the mirrors are not ideal

What do you mean by this? Do you mean ideal is 100 percent reflecting
and non-idea less than 100% reflecting with light going out end (as in
laser) or do you mean less than 100% reflecting with light absorbed
(as in average mirror)?

Will we see a light after turning the lamp off?

Lets next assume characteristics of the "lamp". Does it absorb light
striking it or reflect light striking it or do neither? (See how poor
your description is?)

Basically light from the "lamp" travels to the mirrors where a portion
is reflected back to the lamp. There it can be absorbed (you see
nothing with the lamp out) or reflected (you see a reflection off the
"lamp" a tiny bit later than when it was turned off.

Also of interest is the "laser" situation where the "lamp" neither
reflects nor absorbs the light. In this case at least one mirror will
be "less than perfect" allowing leakage of light through the mirror.
In this case after you turn the light off, the light will continue to
bounce back and forth between the mirrors with a small portion leaking
out the less than perfect mirror as the energy decays in the
"resonator". It's all very analogous to Electromagnetic resonators.

If you have an answer please sent to my email
<hayk.saribekyan@xxxxxxxxx>

Hey Hayk, BITE ME!
I'll send a personal answer to your email if you first send a retainer
check to my consulting firm!

.

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