Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveWavesHard2 minQB

PhysicsHardnumerical

A train moving at 20 m/s towards a hill sounds a 500 Hz whistle (no wind, $v = 340$ m/s). Find the frequency of the echo heard by the driver.

Answer:

562.50

Solution:

The hill receives $500 \times \frac{340}{320} = 531.25$ Hz and reflects it. The driver hears $531.25 \times \frac{360}{340} = 562.5$ Hz.

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves

⏱ 2mℹ️ Source: QB

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