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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsMiscellaneousMedium2 minPYQ_2015

PhysicsMediumsingle choice

Two light rays having the same wavelength in vacuum are in phase initially. Then, the first ray travels a path $L_{I}$ through a medium of refractive index $μ_{1}$ while the second ray travels a path $L_{2}$ through a medium of refractive index $μ_{2}$ . The two waves are then combined to observe interference. The phase difference between the two waves is

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Solution:

First ray optical path $= μ_{1} L_{1}$ second ray optical path $= μ_{2} L_{2}$ So, phase difference $Δ ϕ ∴ Δ ϕ = \frac{2 π}{λ} \times path difference = \frac{2 π}{λ} \times Δ x = \frac{2 π}{λ} (μ_{1} L_{1} - μ_{2} L_{2})$

Stream:VITEEESubject:PhysicsTopic:Wave OpticsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2015

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