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Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

The superposition takes place between two waves of frequency $f$ and amplitude $a$ . The maximum intensity $I_{\max} = constant \times____$

Options:

Answer:

Solution:

Resultant amplitude
$A = \sqrt{a^{2} + a^{2} + 2 a a \cos ϕ} = \sqrt{4 a^{2} \cos^{2} (\frac{ϕ}{2})}$
$A = 2 a \cos (\frac{ϕ}{2})$
$∴ I \propto A^{2}$
$\Rightarrow I \propto 4 a^{2}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Sound WaveSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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