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

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3 : 2

2 : 3

1 : 1

4 : 10

answer is C.

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Detailed Solution

Both listeners, hears the same frequencies.

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