JEE Main 2022PhysicsRay OpticsEasyMCQ

JEE Main 2022 — Ray Optics Question with Solution

JEE Main 2022 (28 Jul Shift 1)

Question

As shown in the figure, after passing through the medium 1. The speed of light v2 in medium 2 will be :
(Given c=3×108 m s-1 )

Choose an option

Show full solutionCorrect option: A
Correct answer
A1.0×108 m s-1

Step-by-step explanation

The refractive index of a medium is given by, n=μrεr.

For medium 2, n2=1×9=3

Now speed of light in a medium will be,

cv=n⇒v=3×1083=1×108 m s-1

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About this question

This is a previous-year question from JEE Main 2022, covering the Ray 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.