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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsYDSEEasy2 minPYQ_2020

PhysicsEasysingle choice

In Young's double slit experiment, distance between the slits $S_{1}$ and $S_{2}$ is $d$ and the distance between slits and screen is $D$ . Then longest wavelength that will be missing on the screen in front of $S_{1}$ is

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Answer:

Solution:

Path difference, $∆ x = d \sin θ \approx d \tan θ = \frac{d^{2}}{2 D}$

For first missing wavelength,

$\frac{d^{2}}{2 D} = \frac{λ}{2}$ or $λ = \frac{d^{2}}{D}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Wave OpticsSubtopic:YDSE

⏱ 2mℹ️ Source: PYQ_2020

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