what is the drop in frequency of the sound a listener hears as a train, with its horn sounding, passes at 145km/h? The frequency of the horn is 320/s, the temperature is 25.0 degrees.
What is the drop in frequency of the sound a listener hears as a train, with its horn sounding, passes at 145k
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Reply:as per doppler's effect the new frequency n" wen d source of sound recedes from u is:
n"=nV/(V+v), where V is d speed of sound, n v is speed of source.if V=340m/s then n"=224.32
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