A whistle is whirled in a circle of radius 1m with 7rps. An observer is situated outside the
Channel: Doubtnut
Date: 02/08/2020

A whistle is whirled in a circle of radius 1m with 7rps. An observer is situated outside the circle, but in its plane. If the speed of sound is 336`m//s`, find the interval between the highest and lowest observed pitches.