JEE Main 2023PhysicsMechanical Properties of SolidsEasyMCQ

JEE Main 2023 — Mechanical Properties of Solids Question with Solution

JEE Main 2023 (24 Jan Shift 1)

Question

A 100 m long wire having cross-sectional area  6.25×10-4 m2 and Young's modulus is 1010 N m-2 is subjected to a load of 250 N, then the elongation in the wire will be :

Choose an option

Show full solutionCorrect option: D
Correct answer
D4×10-3 m

Step-by-step explanation

As we know, elongation in wire is given by,

∆l=FlAY

⇒∆l=250×1006.25×10-4×1010

⇒∆l=4×10-3 m

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About this question

This is a previous-year question from JEE Main 2023, covering the Mechanical Properties of Solids 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.