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Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveMiscellaneousMedium2 minPYQ_2020

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Three harmonic waves having equal frequency $v$ and same intensity $I_{0}$ , have phase angles $0, \frac{π}{4}$ and $- \frac{π}{4}$ respectively. When they are superimposed the intensity of the resultant wave is close to:

Question diagram: Three harmonic waves having equal frequency v and same inten

Options:

Answer:

A

Solution:

$A_{R} = (\sqrt{2} + 1) A$
$I_{R} = {(\sqrt{2} + 1)}^{2} I_{0}$
$= (3 + 2 \sqrt{2}) I_{0} = 5.8 I_{0}$

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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