wave_mechanics dopplers_effect Question 41
Question: A source of sound of frequency 500 Hz is moving towards an observer with velocity 30 m/s. The speed of sound is 330 m/s. the frequency heard by the observer will be
[MP PET 2000; Kerala PMT 2005; UPSEAT 2005]
Options:
A) 550 Hz
B) 458.3 Hz
C) 530 Hz
D) 545.5 Hz
Show Answer
Answer:
Correct Answer: A
Solution:
$ n’=n( \frac{v}{v-v _{S}} )\Rightarrow n’=500( \frac{330}{330-30} )=550 $
$ Hz $ .
BETA
