JEE Main 2022PhysicsExperimental PhysicsMediumMCQ

JEE Main 2022 — Experimental Physics Question with Solution

JEE Main 2022 (29 Jul Shift 1)

Question

A travelling microscope has 20 divisions per cm on the main scale while its Vernier scale has total 50 divisions and 25 Vernier scale divisions are equal to 24 main scale divisions, what is the least count of the travelling microscope ?

Choose an option

Show full solutionCorrect option: C
Correct answer
C0.002 cm

Step-by-step explanation

One main scale division MSD=120 cm

One vernier scale division VSD=2425MSD=2425×120 cm

∴ Least count LC=MSD-VSD=1201-2425cm

=120×125=1500=0.002 cm

=0.002 cm

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About this question

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