A jet engine emits sound uniformly in all directions, radiating an acoustic power of 3.63 × 105 W. Find the intensity of the sound at a distance of 54.1 m from the engine and calculate the corresponding sound intensity level.
Power of the sound emitted by the jet engine = P = 3.63 x 105 W
Distance from the jet engine = R = 54.1 m
Intensity of sound at 54.1 m from the engine = I
I = 9.869 W/m2
Sound intensity level at 54.1 m from the engine =
= 129.94 dB
Intensity of sound at a distance of 54.1 m = 9.869 W/m2
Sound intensity level = 129.94 dB
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