Multiple Choice
A sound wave radiates from a source uniformly in all directions. If the power of the sound source is 200 watts, then the intensity level of the sound wave 1000 m from the source is
A) 62.8 dB.
B) 66.0 dB.
C) 68.5 dB.
D) 70.5 dB.
E) 72.0 dB.
Correct Answer:
Verified
Correct Answer:
Verified
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