Home Physics Wave and Sound Mix A source of sound emits power which is unif…
Physics Wave and Sound Mix MCQ (Single Correct)

A source of sound emits power which is uniformly distributed over a sphere of 10 m radius. What is the loudness of sound on the surface of a sphere

A
200 dB
B
200 π π dB
C
120 dB
D
120 π π dB

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The correct answer is:
C

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