Questions
Plane electromagnetic waves of intensity S are incident normally on a flat surface. Only a fraction f of the incident energy is absorbed. What is the radiation pressure?
detailed solution
Correct option is B
P=Pabsorbed light+Preflected ; P=I1C+2I-I1CLet I1 be the intensity absorbed, fractionf=I1I=I1S ⇒I1=SfP=SfC+2S-SfC ⇒P=SC2-fTalk to our academic expert!
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