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Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveMiscellaneousMedium2 minPYQ_2021

PhysicsMediumsingle choice

Velocity of sound waves in air is ' $V$ ' $m / s$ . For a particular sound wave in air, path difference of ' $x$ ' $cm$ is equivalent to phase difference $nπ$ . The frequency of this wave is

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Solution:

Phase difference, $ϕ = \frac{2 π x}{λ}$ Given $ϕ = n π; λ = \frac{V}{f}$ $∴ n π = \frac{2 π xf}{V} ∴ f = \frac{nV}{2 x}$

Stream:MHT_CETSubject:PhysicsTopic:Sound WaveSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2021

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