wave_mechanics dopplers_effect Question 2
Question: A source of sound of frequency 450 cycles/sec is moving towards a stationary observer with 34 m/sec speed. If the speed of sound is 340 m/sec, then the apparent frequency will be
[MP PMT 1987]
Options:
A) 410 cycles/sec
B) 500 cycles/sec
C) 550 cycles/sec
D) 450 cycles/sec
Show Answer
Answer:
Correct Answer: B
Solution:
$ n’=n( \frac{v}{v-v _{0}} )=450( \frac{340}{340-34} )=500 $
$ cycles/\sec $
BETA
