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MHT CET Physics question

PhysicsWave OpticsMHT CET

In Young's double slit experiment, for wavelength the nth bright fringe is obtained at a point P on the screen. Keeping the same setting, source of light is replaced by wavelength and now (n+1)th bright fringe is obtained at the same point P on the screen. The value of n is [MHT-CET 2021]

Answer: (A)

Solution

Same path difference: , so and

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Question ID VK-077515