1
IAT (IISER) 2023
MCQ (Single Correct Answer)
+4
-1
The frequency of the whistle of a train moving with a constant speed is observed by a stationary detector on the platform to be $v_1$. The frequency of the same whistle is detected to be $v_2$ inside another train moving on a parallel track, at a speed $v$ towards the frst train. If the speed of sound in air is taken to be $v_s$ ound, what is the ratio $v / v_s$ ound?
Questions Asked from Waves (MCQ (Single Correct Answer))
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