JEE Main 2022 — Wave Optics Question with Solution
From: JEE Main 2022 (Online) 29th June Evening Shift
Question
In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the plane of slits. If the screen is moved by 5 102 m towards the slits, the change in fringe width is 3 103 cm. If the distance between the slits is 1 mm, then the wavelength of the light will be ____________ nm.
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Show full solutionCorrect answer: 600
Step-by-step explanation
Fringe width
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This is a previous-year question from JEE Main 2022, covering the Wave Optics chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.