The Intensity Level of Sound 18 M from a Jet

question 39

Multiple Choice

The intensity level of sound 18 m from a jet airliner is 120 dB.At what distance from the airplane will the sound intensity level be a tolerable 100 dB? (Assume spherical spreading of sound. )

• A) 13 m
• B) 120 m
• C) 360 m
• D) 232 m
• E) ​8 m

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