A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30 m/s. The frequency of sound heard by listener is (velocity of sound = 300 m/s) :

A siren emitting sound of frequency 800 Hz is going away from a static

1.	A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30 m/s. The frequency of sound heard by listener is (velocity of sound = 300 m/s) :
Answer» 727.3 HZ 481.2 Hz 644.8 Hz 286.5 Hz. Solution :`V. = ((V)/(V + U_(s)) ) v = ((300)/(300 + 30)) 800 ` = 727.3 Hz CORRECT choice is (a).

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A siren emitting sound of frequency 800 Hz is going away from a static listener with a speed of 30 m/s. The frequency of sound heard by listener is (velocity of sound = 300 m/s) :

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