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Question
Mention two cases in which there is no Doppler effect in sound?
Short/Brief Note
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Solution
- When source (S) and listener (L) both are at rest.
- When S and L move in such a way that distance between them remains constant.
- When source S and L are moving in mutually perpendicular directions.
- If the source is situated at the centre of the circle along which the listener is moving.
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Chapter 5: Acoustics - Evaluation [Page 71]
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