Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveWavesMedium2 minQB

PhysicsMediuminteger

An approaching train whistle is heard at 120 Hz and at 80 Hz after it has passed. What does an observer riding on the train hear?

Answer:

Solution:

$\frac{v + u}{v - u} = \frac{120}{80}$ gives $u = v /5$ . $f_{0} = 120 \times \frac{4}{5} = 96$ Hz.

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves

⏱ 2mℹ️ Source: QB

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