JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyConceptual

JEE Main 29 July 2022, Shift 1, Physics Q38

Question 38 of 90 in this shift, Physics question 8 of 30, Section A.

If the length of a wire is made double and radius is halved of its respective values. Then, the Young's modulus of the material of the wire will :

(1)remain sameOfficial answer
(2)become 8 times its initial value
(3)become $\frac{1}{4}^{\mathrm{th}}$ of its initial value
(4)become 4 times its initial value

Official answer

Option 1

NTA final key.

Chapter: Mechanical Properties of Solids
Topic: Elasticity
Idea tested: Elastic Moduli

Same idea in other shifts

Asked 18× in all

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.