Conditions for No Doppler's Effect
Category : JEE Main & Advanced
(1) When source (S) and listener (L) both are at rest.
(2) When medium alone is moving.
(3) When S and L move in such a way that distance between S and L remains constant.
(4) When source S and listener L, are moving in mutually perpendicular directions.
(5) If the velocity of source and listener is equal to or greater than the sound velocity then Doppler effect is not seen.
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