A sound source radiates sound uniformly in all directions. The intensity of the sound at a distance of 100 m is The power of the sound source is

A. 12.6 W.
B. 16.2 W.
C. 20.4 W.
D. 24.5 W.
E. 30.6 W.


A. 12.6 W.

Physics & Space Science

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