wave_mechanics dopplers_effect Question 50
Question: 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)
[CPMT 1996; AIIMS 2002; Pb. PMT 2001]
Options:
A) 733.3 Hz
B) 644.8 Hz
C) 481.2 Hz
D) 286.5 Hz
Show Answer
Answer:
Correct Answer: A
Solution:
$ n’=n( \frac{v}{v+v _{S}} )=800( \frac{330}{330+30} )=733.33Hz $ .
BETA
