JEE Main 2022 — Wave Optics Question with Solution
From: JEE Main 2022 (Online) 28th June Evening Shift
Question
In a Young's double slit experiment, an angular width of the fringe is 0.35 on a screen placed at 2 m away for particular wavelength of 450 nm. The angular width of the fringe, when whole system is immersed in a medium of refractive index 7/5, is . The value of is ___________.
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Show full solutionCorrect answer: 4
Step-by-step explanation
Angular fringe width
So
So
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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.