NEET UG PHYSICS MCQ: WAVE OPTICS

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In a Young’s double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is:

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Correct option: A

Option A (12) is correct because the number of fringes is inversely proportional to the wavelength.

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