Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveStanding waveMedium2 minPYQ_2020

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An open pipe of sufficient length is dipping in water with a speed $v$ vertically. If at any instant $l$ is the length of the tube above water. Then the rate at which fundamental frequency of pipe changes, is (speed of sound = $c$ )

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Answer:

Solution:

$f = \frac{c}{4 l}$

$∴ |\frac{df}{dt}| = \frac{c}{4 l^{2}} |\frac{d l}{dt}| = \frac{cv}{4 l^{2}}$

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Standing wave

⏱ 2mℹ️ Source: PYQ_2020

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