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A parallel beam of light is incident nor...

A parallel beam of light is incident normally on a plane surface absorbing 40% of the light and reflecting the rest. If the incident beamm carries 60 W of power, the force exerted by it on the surface is

A

`3.2 xx 10^(-8) N`

B

`3.2 xx 10^(-7) N`

C

`5.12 xx 10^(-7) N`

D

`5.12 xx 10^(-8) N`

Text Solution

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The correct Answer is:
B
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