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A beam of white light is incident normal...

A beam of white light is incident normally on a plane surface absorbing `(70%)` of the light and reflecting the rest. If the incident beam carries 10 W of power , find the force exerted by it on the surface .

A

`(IA)/(c)(1-eta)`

B

`(IA)/(c)(eta+1)`

C

`(IA)/(c)(2eta-1)`

D

`(IA)/(c)(2-eta)`

Text Solution

Verified by Experts

The correct Answer is:
D
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