A man stands before a large wall at a distance of 50.0 m and claps his hands at regular intervals
Channel: Doubtnut
Date: 2020-07-05

A man stands before a large wall at a distance of 50.0 m and claps his hands at regular intervals. Initially, the interval is large. He gradually reduces the interval and fixes it at a value when the echo of a clap merges with the next clap. If he has to clap 10 times during every 3 seconds, find the velocity of sound in air.