JEE PHYSICS MCQ: WAVE OPTICS

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In Young’s double slit experiment, a third slit is made in between the double slits. Then

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Correct option: B

Contrast between bright and dark fringes is reduced

Option B is correct. Introducing a third slit in Young's double-slit experiment reduces the contrast between bright and dark fringes because it introduces additional interference patterns that partially fill in the dark fringes.

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