A train moves towards stationary observer with a speed 34 m ,s^ -1 . The train sounds a whistle and its...

Question

A train moves towards stationary observer with a speed 34 m ,s^ -1 . The train sounds a whistle and its frequency registered by the observer is f_1. If the train's speed is reduced to 17 m ,s^ -1 , the frequency registered is f_2. If the speed of sound is 340 m ,s^ -1 , then ratio f_1 f_2 is

Accepted Answer

(D)

MHT CET Physics question

Solution

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