A sound source of power 150 watts radiates sound uniformly in all directions. The intensity of the sound at a distance of 4.00 m is
A) 0.389 W/m2.
B) 0.403 W/m2.
C) 0.582 W/m2.
D) 0.746 W/m2.
E) 0.927 W/m2.
Correct Answer:
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