JEE Main 2023PhysicsRay OpticsMediumNumerical

JEE Main 2023 — Ray Optics Question with Solution

JEE Main 2023 (15 Apr Shift 1)

Question

The refractive index of a transparent liquid filled in an equilateral hollow prism is 2. The angle of minimum deviation for the liquid will be _______°.

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Show full solutionCorrect answer: 30
Correct answer
30

Step-by-step explanation

For minimum deviation in a prism,

μ=sinDmin+A2sinA2

The value of minimum deviation is

⇒2=sinDmin+60°2sin30°

⇒12=sinDmin+60°2⇒45°=Dmin+60°2⇒Dmin=30°

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About this question

This is a previous-year question from JEE Main 2023, 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.