Just wondering about a question.. can someone help me to solve it??
Answer:
Once you turn off the light, the room will be dark.
The mirrors and lack of air won't affect that.
it will go dark eventually as the source of the energy will fade away.
The light will extinguish almost instantaneously as the mirrors are not perfectly efficient, and will absorb energy, re-radiating it as heat. (Consider that all surfaces we know are reflective to some degree, and when you turn the light off in a normal room it becomes dark so quickly that no one has been able to time the process, to my knowledge.)
not until you can design a perfectly reflective mirror will anything happen except the room getting dark as soon as the lights go out. Even the most advanced mirror we have absorbes some of the light energy when it bounces off. Even then some of the the light energy will be absorbed by the the air inthe room.. (You said airtight not a vaccuum)
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