A plate glass window (n = 1.5) has a thickness of 3.7 mm. How long does it take light to pass perpendicularly through the plate?
Velocity of light in glass = c/n
= 3*10^8 / 1.5
= 2*10^8
Time = thickness/ speed
= 3.7*10^-3 / 2*10^8
= 1.85 *10^-11 sec
A plate glass window (n = 1.5) has a thickness of 3.7 mm. How long does...
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