Multiple Choice
An electromagnetic wave of intensity 100 W/m2 is incident normally on a square black card whose sides are 25 cm.If the card absorbs all of the radiation incident on it,the approximate force exerted by the wave on this card is
A) 64 nN
B) 16 nN
C) 42 nN
D) 10 nN
E) None of these is correct.
Correct Answer:
Verified
Correct Answer:
Verified
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