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MHT CET Physics question

PhysicsWave OpticsMHT CET

The ratio of intensity at the centre of a bright fringe to the intensity at a point distant one-fourth of the distance between two successive bright fringes will be

Answer: (C)

Solution

At the centre of a bright fringe ; one-fourth of the fringe width corresponds to a phase difference , so and

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Question ID VK-077325