JEE Main 2021PhysicsMechanical Properties of SolidsEasyMCQ

JEE Main 2021Mechanical Properties of Solids Question with Solution

JEE Main 2021 (20 Jul Shift 2)

Question

The length of a metal wire is 1, when the tension in it is T1 and is 2 when the tension is T2. The natural length of the wire is:

Choose an option

Show full solutionCorrect option: B
Correct answer
B1 T2-2 T1 T2-T1

Step-by-step explanation

T1=k1-0

T2=k2-0

T1 T2=1-02-0

T12-T10= T21-T20

T21-T12 T2-T2=0

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About this question

This is a previous-year question from JEE Main 2021, 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.