Physics, asked by jokerman1689, 11 hours ago

Mcq a body is walking away from a wall towards an observer at speed of 1 m per second and blow the whistle whose frequency is 680 hz the number of beats heard by the observer per second is approximately velocity of sound in air = 340 m per second

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Answered by Navreetbhardwaj

0

Answer:

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Explanation:

please mark me as brainleast

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