A source of sound emits waves with frequency f ~Hz and speed V m … - Vidyadip

MCQ

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

A
$3: 2$
B
$2: 3$
✓
$1: 1$
D
$4: 10$

✓

Answer

Correct option: C.

$1: 1$

(c) Both listeners, hears the same frequencies.

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