JEE Main 2022 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 26 July 2022, Shift 2, Physics Q52

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

The radius of gyration of a cylindrical rod about an axis of rotation perpendicular to its length and passing through the center will be ___________

m

. Given, the length of the rod is

10\sqrt{3}\ m

Official answer

NTA final key.

Chapter: System of Particles and Rotational Motion
Topic: Moment of Inertia
Idea tested: Radius of Gyration

Same idea in other shifts

Asked 5× in all

5 Apr 2024, Shift 1 · Q35Ratio of radius of gyration of a hollow sphere to that of a solid cylinder of equal mass, for moment of Inertia about their diameter axis…MediumSingle correctHas a figure
6 Apr 2023, Shift 2 · Q52A ring and a solid sphere rotating about an axis passing through their centers have same radii of gyration. The axis of rotation is…MediumNumerical value
15 Apr 2023, Shift 1 · Q53A solid sphere and a solid cylinder of same mass and radius are rolling on a horizontal surface without slipping. The ratio of their…EasyNumerical value
25 Jul 2021, Shift 1 · Q15Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Moment of inertia of…EasyAssertion–reason

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.