An ambulance travels down a highway at a speed of 33.5 ms-1, its siren emitting sound at a frequency of 400 Hz. What frequency is heard by a passenger in a car travelling at 24.6 ms-1 in the opposite direction and approaching to the ambulance?

Question

An ambulance travels down a highway at a speed of 33.5 ms-1, its siren emitting sound at a frequency of 400 Hz. What frequency is heard by a passenger in a car travelling at 24.6 ms-1 in the opposite direction and approaching to the ambulance?

Accepted Answer

গ. 488Hz

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