wave_mechanics dopplers_effect Question 5

Question: A source of sound emits waves with frequency f Hz and speed V m/sec. Two observers move away from this source in opposite directions each with a speed 0.2 V relative to the source. The ratio of frequencies heard by the two observers will be

[MP PET 1990]

Options:

A) 3 : 2

B) 2 : 3

C) 1 : 1

D) 4 : 10

Show Answer

Answer:

Correct Answer: C

Solution:

Both listeners, hears the same frequencies.