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Question

Q1. The intensity of a wave

(I) follows inverse square law.
(II) is proportional to its amplitude.
(III) is proportional to the square of the amplitude.

I and II are true.

II and III are true.

Only II is true.

I and III are true.

Accepted Answer

Answer : I and III are true.

The intensity of a wave follows Inverse Square Law and is proportional to the square of the amplitude.
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