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.A source is moving with a constant spee...

.A source is moving with a constant speed of "10m/s" on a circular track of "200m" .It emits a sound of frequency "200Hz" .A listener stands at the centre of the circular track.The frequency recieved by the listener is (velocity of sound "=340m/s" ) 1) zero 2)200Hz 3)190Hz 4) 210Hz

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