wave_mechanics dopplers_effect Question 8
Question: An observer is moving towards the stationary source of sound, then
[MH CET 2001]
Options:
A) Apparent frequency will be less than the real frequency
B) Apparent frequency will be greater than the real frequency
C) Apparent frequency will be equal to real frequency
D) Only the quality of sound will change
Show Answer
Answer:
Correct Answer: B
Solution:
Apparent frequency in this case$ n’=\frac{n(v+v _{O})}{v} $
$ \because $
$ \frac{v+v _{0}}{v}>1 $
Therefore $ \frac{n’}{n}>1 $ i.e.
$ n’>n $ .
BETA
