(a) What is the intensity of a `60 dB` sound ? (b) If the sound level is `60 dB` close to a
Channel: Doubtnut
Date: 2020-07-12

(a) What is the intensity of a `60 dB` sound ? (b) If the sound level is `60 dB` close to a speaker that has an area of `120 cm ^(2)` . What is the acoustic power output of the speaker?