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Saturday, 31 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 27 August 2021, Shift 1, Physics Q22

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

Two persons A and B perform same amount of work in moving a body through a certain distance d with application of forces acting at angles 45∘45^\circ and 60∘60^\circ with the direction of displacement respectively. The ratio of force applied by person A to the force applied by person B is 1x\frac{1}{\sqrt{x}}. The value of xx is __________.

Official answer

2

NTA final key.

Chapter
Work, Energy and Power
Topic
Work and Kinetic Energy
Idea tested
Work via Dot Product

Same idea in other shifts

Asked 2× in all
  1. 4 Apr 2026, Shift 1 · Q46A 11 kg block subjected to two simultaneous forces (2i^+3j^+4k^)\left(2\hat{i}+3\hat{j}+4\hat{k}\right) N and…EasyNumerical value

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.