36. What is Doppler effect of sound?. Obtain the general expression for the apparent frequency of sound. (b). Railway engine blowing a whistle of frequency 636 Hz approaches a person standing on a railway platform with a velocity 108 km/hr.Calculate the apparent frequency of the whistle as heard b
Answer (1)
28th Mar, 2021
Hello Dear,
The change in the pitch when there is a relative motion between source and observer is called Doppler's effect. Let a source at rest be emitting the waves of frequency f and wavelength λ. Let V be the velocity of wave emitted by source V=fλ. Let the distance between source and observer be V. Please elaborate your question and feel free to ask your doubts here for quick resolution of your query.
good Luck
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