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MHT CET Physics question

PhysicsWavesMHT CET

A rocket is receding away from earth with velocity . The rocket emits signal of frequency Hz. The apparent frequency of the signal produced by the rocket observed by the observer on earth will be

Answer: (C)

Solution

For a source receding at the observed frequency falls below Hz (about to Hz), so (d), which is higher, is wrong, and

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Question ID VK-068666