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Light with an enargy flux of 25xx10^(4) ...

Light with an enargy flux of `25xx10^(4) Wm^(-2)` falls on a perfectly reflecting surface at normal incidence. If the surface area is `15 cm^(2)`, the average force exerted on the surface is

A

`1.25 xx 10^(-6) N`

B

`2.50 xx 10^(-6) N`

C

`1.20 xx 10^(-6) N`

D

`3.0 xx 10^(-6) N`

Text Solution

Verified by Experts

The correct Answer is:
B
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