A rock band give rise to an average sound level of `102 dB` at a distance of `20 m` from
Channel: Doubtnut
Date: 12/07/2020

A rock band give rise to an average sound level of `102 dB` at a distance of `20 m` from the center of the band . As an approximation , assume that the band radiates sound equally into a sphere. What is the sound power output of the band?