A whistle revolves in a circle with angular speed ꞷ = 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 head by an observer which is far away from the center:- (velocity of sound V sound = 340m/s)
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Verified by ExpertsThe correct answer is:
B
Velocity of source whistle 
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