The sound of a band is rated as 60 dB at a distance of 10.0 m.What is the dB sound level of the band when one is 20.0 m from the band?
A) 56 dB
B) 54 dB
C) 52 dB
D) 50 dB
E) 48 dB

Question

Quizplus · Accepted Answer

The sound intensity decreases with the square of the distance. Doubling the distance from the source results in a decrease of about 6 dB. Therefore, at 20 m, the sound level is approximately 54 dB.

The Sound of a Band Is Rated as 60 DB