JEE Main 2023 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 8 April 2023, Shift 2, Physics Q52

Question 52 of 90 in this shift, Physics question 22 of 30, Section B.

A steel rod of length 1 m and cross sectional area

10^{-4}

^2

is heated from

0^\circ

C to

200^\circ

C without being allowed to extend or bend. The compressive tension produced in the rod is ____________

\times 10^4

N. (Given Young's modulus of steel =

2\times10^{11}

^{-2}

, coefficient of linear expansion =

10^{-5}

^{-1}

)

Official answer

NTA final key.

Chapter: Thermal Properties of Matter
Topic: Thermal Expansion
Idea tested: Thermal Stress

Same idea in other shifts

Asked 4× in all

4 Aug 2021, Shift 1 · Q16A steel wire of 1 mm $^2$ cross-sectional area having Young’s modulus $2\times10^{11}$ N/m $^2$ is stretched between two fixed points at a…EasySingle correct
25 Feb 2021, Shift 1 · Q9Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : When a rod lying…EasyAssertion–reason
2 Apr 2017 (offline) · Q9An external pressure P is applied on a cube at 0°C so that it is equally compressed from all sides. K is the bulk modulus of the material…MediumSingle correct

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.