Questions
A Siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30 m/s, frequency of the sound to be heard by the listener is (take velocity of sound as 330 m/s)
a
733.3 Hz
b
644.8 Hz
c
481.2 Hz
d
286.5 Hz
detailed solution
Correct option is A
n'=n vv+vS=800 330330+30 =733.33 HzTalk to our academic expert!
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An observer is moving towards the stationary source of sound, then
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