wave_mechanics dopplers_effect Question 56
Question: A source emits a sound of frequency of 400 Hz, but the listener hears it to be 390 Hz. Then
[Orissa JEE 2003]
Options:
A) The listener is moving towards the source
B) The source is moving towards the listener
C) The listener is moving away from the source
D) The listener has a defective ear
Show Answer
Answer:
Correct Answer: C
Solution:
Since apparent frequency is lesser than the actual frequency, hence the relative separation between source and listener should be increasing.