Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveWavesMedium2 minQB

PhysicsMediumnumerical

A policeman blows a 400 Hz whistle as a car passes him at 36 km/h ( $v = 340$ m/s). Find the change in frequency heard by the driver as he passes.

Answer:

23.50

Solution:

$Δ f = 2 u f / v = 2 \times 10 \times 400/340 = 23.5$ Hz.

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves

⏱ 2mℹ️ Source: QB

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