JEE Main 2021 — Wave Optics Question with Solution
From: JEE Main 2021 (Online) 24th February Morning Shift
Question
In a Young's double slit experiment, the width of the one of the slit is three times the other slit. The amplitude of the light coming from a slit is proportional to the slit-width. Find the ratio of the maximum to the minimum intensity in the interference pattern.
Choose an option
Show full solutionCorrect option: A
Correct answer
A4 : 1
Step-by-step explanation
Given, amplitude width of slit
A2 = 3A1
We know that,
Intensity, I A2
A2 = 3A1
We know that,
Intensity, I A2
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Wave Optics chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
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.