Question

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 every 3 seconds, find the velocity of sound in air.

Answer 1

Answer:

Below

Explanation:

$velocity \\ = 150 {m}^{ s-1}$