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MHT CET Physics question

PhysicsWave OpticsMHT CET

The thickness of a plate having refractive index 'μ' which will produce a change in optical path equal to half the wavelength 'λ' of the light passing through it is [MHT-CET 2020]

Answer: (B)

Solution

Change in optical path , so ; the other options

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Question ID VK-077565