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A Sound Source Radiates Sound Uniformly in All Directions ×\times 10-4 W/m2

Question 36

Multiple Choice

A sound source radiates sound uniformly in all directions.The intensity of the sound at a distance of 100 m is 1.00 ×\times 10-4 W/m2.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.

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