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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

Two waves $y_{1} = 3 \sin ω t cm$ and $y_{2} = 4 \cos (ω t + \frac{π}{2}) cm$ produce the interference pattern. Then the amplitude of the resultant wave will be

Options:

Answer:

Solution:

$A = \sqrt{a^{2} + b^{2} + 2 a b \cos ϕ}$

$= \sqrt{9 + 16 + 2 . a b \cos \frac{π}{2}} = \sqrt{25} = 5$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave OpticsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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