JEE Main 2021 — Wave Optics Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
If the source of light used in a Young's double slit experiment is changed from red to violet :
Choose an option
Show full solutionCorrect option: C
Correct answer
Cconsecutive fringe lines will come closer.
Step-by-step explanation
According to Young's double slit experiment, the distance of nth bright fringe from the centre,
Since,
Consecutive fringe lines will come closer.
Since,
Consecutive fringe lines will come closer.
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This is a previous-year question from JEE Main 2021, 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.