A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. The area of...

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A perfectly reflecting flat mirror is uniformly il

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Answer 1

Answer #1

In case of perfect relection

Force exerted by beam is given as

$F=2A\frac{I}{c}$

thus

$I=\frac{Fc}{2A}= \frac{1.29*10^{-6}*3*10^8}{2*2.61}=74.138W/m^2$

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Answer 2

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