A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points P and Q are at a distance of 4 m and 9 m respectively from the source. The ratio of amplitudes of the waves at P and Q is

Question:

Options :

a)3/2
b)4/9
c)2/3
d)9/4

Answer :

d)9/4

Answer Steps :

Step:-1

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