Question

Electromagnetic wave of intensity 1400 W/m² falls
on metal surface on area 1.5 m² is completely
absorbed by it. Find out force exerted by beam.
(1) 14 x 10-5 N (2) 14 x 10-6 N
(3) 7 x 10-5 N
(4) 7 x 10-6 N

Answer 1

Explanation:

D is the right answer

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Answer 2

Answer:

(4)7×10-6N

Explanation:

It is the correct answer.

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