JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 26 July 2022, Shift 2, Physics Q34

Question 34 of 90 in this shift, Physics question 4 of 30, Section A.

A body of mass 8 kg and another of mass 2 kg are moving with equal kinetic energy. The ratio of their respective momenta will be :

(1)1:1
(2)2:1Official answer
(3)1:4
(4)4:1

Official answer

Option 2

NTA final key.

Chapter: Work, Energy and Power
Topic: Work and Kinetic Energy
Idea tested: Momentum and Kinetic Energy Relation

Same idea in other shifts

Asked 12× in all

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8 Apr 2024, Shift 1 · Q35Three bodies A, B and C have equal kinetic energies and their masses are 400 g, 1.2 kg and 1.6 kg respectively. The ratio of their linear…EasySingle correct
27 Jan 2024, Shift 1 · Q35Two bodies of mass 4 g and 25 g are moving with equal kinetic energies. The ratio of magnitude of their linear momentum is :EasySingle correct
8 Apr 2023, Shift 1 · Q54The momentum of a body is increased by $50\%$ . The percentage increase in the kinetic energy of the body is ________ %.EasyNumerical value
8 Apr 2023, Shift 2 · Q54A body of mass 5 kg is moving with a momentum of 10 kg ms $^{-1}$ . Now a force of 2 N acts on the body in the direction of its motion for 5…EasyNumerical value
13 Apr 2023, Shift 1 · Q34Two bodies are having kinetic energies in the ratio 16 : 9. If they have same linear momentum, the ratio of their masses respectively is :EasySingle correct
29 Jul 2022, Shift 2 · Q45If momentum of a body is increased by 20%, then its kinetic energy increases byEasySingle 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.