Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveDopler's effectEasy2 minPYQ_2023

PhysicsEasysingle choice

The engine of a train moving with speed $10 ms^{- 1}$ towards a platform sounds a whistle at frequency $400 Hz$ . The frequency heard by a passenger inside the train is (neglect air speed. Speed of sound in air $330 ms^{- 1}$ )

Options:

Answer:

Solution:

The relative velocity of a passenger with respect to source of sound (engine of train) is 0 . So there will be no Doppler's effect. So frequency heard is $400 Hz$ .

Stream:BITSATSubject:PhysicsTopic:Sound WaveSubtopic:Dopler's effect

⏱ 2mℹ️ Source: PYQ_2023

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