If you directed a laser light into a mirror that reflected that light back into an opposing mirror that reflected the light back into itself on the original mirror (and so on, to continue indefinitely), would that light continue to reflect even after you have switched off the laser. If not, why not.
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Thanks for info. I am still confused as to why the loss of light or dissipation of light, coincides with the exact timing of the laser being switched off, if the mirrors were in perfect opposition and the light was in a state of constant reflection.
The timing is not exact, actually. There is a lag due to the chemical switching nature of neurons in the brain that are much slower than the speed of light. It just looks instantaneous to us because we cannot process such small units of time.