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MHT CET Physics question

PhysicsWave OpticsMHT CET

The optical path difference between two identical light waves arriving at a point is 31.5λ, where 'λ' is the wavelength of light used. The point is [Two light sources are coherent] [MHT-CET 2020]

Answer: (D)

Solution

is an odd multiple of , which is the condition for destructive interference, so the point is

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Question ID VK-077556