A sounding source of frequency 500 Hz moves towards a stationary observer with a velocity of 30 m s - 1 . If the velocity of sound in air is 330 m s - 1 , find frequency heard by the observer.

Question

A sounding source of frequency 500 Hz moves towards a stationary observer with a velocity of 30 m s - 1 . If the velocity of sound in air is 330 m s - 1 , find frequency heard by the observer., 500 Hz, 550 Hz, 355 Hz, 55.5 Hz

MARKS App · Accepted Answer

f = 500 Hz v o = 0 v s = 30 m s - 1 , v = 330 m s - 1 From , f ' = f v - v o v - v s = 500 300 330 - 30 = 550 Hz

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