A whistle revolves in a circle with an angular speed of `20 rad//sec` using a string of length 50 cm
Channel: Doubtnut
Date: 2020-01-19

A whistle revolves in a circle with an angular speed of `20 rad//sec` using a string of length `50 cm`. If the frequency of sound from the whistle is `385 Hz`, then what is the minimum frequency heard by an observer which is far away from the centre in the same plane? `v=340m//s`