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Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A point source emits sound equally in all directions in a non-absorbing medium. Two points $P$ and $Q$ are at distances of $2 m$ and $3 m$ respectively from the source. The ratio of the intensities of the waves at $P$ and $Q$ is

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Answer:

Solution:

$d_{1} = 2 m, d_{2} = 3 m$

$Intensity \propto \frac{1}{{(distance)}^{2}}$

$I_{1} \propto \frac{1}{2^{2}} and I_{2} \propto \frac{1}{3^{2}}$

$∴ \frac{I_{1}}{I_{2}} = \frac{9}{4}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Sound WaveSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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