JEE Main 2024PhysicsExperimental PhysicsEasyMCQ

JEE Main 2024 — Experimental Physics Question with Solution

JEE Main 2024 (27 Jan Shift 1)

Question

Identify the physical quantity that cannot be measured using spherometer :

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Show full solutionCorrect option: B
Correct answer
BSpecific rotation of liquids

Step-by-step explanation

A spherometer is a device used for measuring the curvature of surfaces, particularly the radius of curvature of spherical or cylindrical surfaces. It consists of a central leg with a fine screw, and three outer legs that form a tripod. The device is primarily designed for measuring dimensions related to curved surfaces.

Specific rotation is a property related to the rotation of plane-polarized light in a substance. It is not measured using a spherometer. Instead, a polarimeter is typically used to measure specific rotation.

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About this question

This is a previous-year question from JEE Main 2024, covering the Experimental Physics 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.