JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 29 July 2022, Shift 2, Physics Q42

Question 42 of 90 in this shift, Physics question 12 of 30, Section A.

An object of mass 1 kg is taken to a height from the surface of earth which is equal to three times the radius of earth. [If,

\mathrm{g=10ms^{-2}}

and radius of earth = 6400 km] The gain in potential energy of the object will be

(1)48 MJOfficial answer
(2)24 MJ
(3)36 MJ
(4)12 MJ

Official answer

Option 1

NTA final key.

Chapter: Gravitation
Topic: Gravitational Potential
Idea tested: Exact Potential Energy Change at Large Heights

Same idea in other shifts

Asked 3× in all

5 Apr 2026, Shift 2 · Q32A body of mass $m$ is taken from the surface of earth to a height equal to twice the radius of earth ( $R_e$ ). The increase in potential…EasySingle correct
15 Apr 2023, Shift 1 · Q35A body is released from a height equal to the radius (R) of the earth. The velocity of the body when it strikes the surface of the earth…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.