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A plane electromagnetic wave of intensit...

A plane electromagnetic wave of intensity of `10 W//m^(2)` strikes a small mmirror of area `20 cm^(2)`, held perpendicular to the approcaching wave. The radiation froce on the mirror will be:

A

`8*10^-11 N`

B

`4*10^-11 N`

C

`10^-11 N`

D

`2* 10^-12 N`

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