Question

A person riding on a merry-go round emits a sound wave of a certain frequency. Will the person at centre observe Doppler Effect.

(a) Yes

(b) No

This question was addressed to me in class test.

This interesting question is from Reverberation topic in chapter Waves of Engineering Physics I

Answer 1

The correct choice is (b) No

To explain: The person does not experience the Doppler Effect because the source is moving perpendicular to the line joining the source and the observer.