wave_mechanics dopplers_effect Question 39
Question: A siren emitting sound of frequency 500 Hz is going away from a static listener with a speed of 50 m/sec. The frequency of sound to be heard, directly from the siren, is
[AIIMS 1999; Pb. PMT 2003]
Options:
A) 434.2 Hz
B) 589.3 Hz
C) 481.2 Hz
D) 286.5 Hz
Show Answer
Answer:
Correct Answer: A
Solution:
$ {n}’=n( \frac{v}{v+v _{S}} )=500\times ( \frac{330}{300+50} )=434.2Hz $
BETA
