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MHT CET Physics question

PhysicsWavesMHT CET

An object producing a pitch of 600 Hz approaches a stationary person in a straight line with a velocity of 200 m/s. Velocity of sound is 300 m/s. The person will note a change in frequency, as the object flies past him, equal to

Answer: (A)

Solution

Approaching Hz and receding Hz, so the change is

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Question ID VK-070114