JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyConceptual

JEE Main 30 January 2024, Shift 1, Physics Q37

Question 37 of 90 in this shift, Physics question 7 of 30, Section A.

Young's modules of material of a wire of length 'L' and cross-sectional area A is Y. If the length of the wire is doubled and cross-sectional area is halved then Young's modules will be :

(1) $4Y$
(2) $\frac{Y}{4}$
(3) $Y$ Official answer
(4) $2Y$

Official answer

Option 3

NTA final key.

Chapter: Mechanical Properties of Solids
Topic: Elasticity
Idea tested: Stress and Strain Types

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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.