JEE Main 2023PhysicsRay OpticsHardMCQ

JEE Main 2023 — Ray Optics Question with Solution

JEE Main 2023 (12 Apr Shift 1)

Question

An ice cube has a bubble inside. When viewed from one side the apparent distance of the bubble is 12 cm. When viewed from the opposite side, the apparent distance of the bubble is observed as 4 cm. If the side of the ice cube is 24 cm, the refractive index of the ice cube is 

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Correct answer
A32

Step-by-step explanation

Let's assume that the original position of the bubble is x from one side of the ice cube of side a.

When the bubble is seen from one side, it can be written that

xμ=12   ...1

For the view from the other side, it can be written that

a-xμ=4   ...2

From equations (1) and (2), it is given that

24-12μ=4μ⇒μ=2416=1.5

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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.