JEE Main 2021 — Wave Optics Question with Solution
JEE Main 2021 (27 Jul Shift 1)
Question
In Young's double slit experiment, if the source of light changes from orange to blue then:
Choose an option
Show full solutionCorrect option: B
Correct answer
Bthe distance between consecutive fringes will decrease.
Step-by-step explanation
Fringe width .
As decreases, fringe width also decreases.
As decreases, fringe width also decreases.
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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.