NEET UG PHYSICS MCQ: WAVE OPTICS

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A Young’s double slit set up for interference is shifted from air to within water, then the fringe width

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Correct option: B

Decreases

When a Young's double-slit setup is moved from air to water, the wavelength of light decreases, causing the fringe width to decrease as well. The refractive index of water is greater than air.

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