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Friday, 9 October

JEE Main 2022 · PhysicsNumerical answerNumerical valueMediumApplication

JEE Main 24 June 2022, Shift 1, Physics Q60

Question 60 of 90 in this shift, Physics question 30 of 30, Section B.

A metre scale is balanced on a knife edge at its centre. When two coins, each of mass 10 g are put one on the top of the other at the 10.0 cm mark the scale is found to be balanced at 40.0 cm mark. The mass of the metre scale is found to be x×10−2x\times10^{-2} kg. The value of x is ______.

Official answer

6

NTA final key (2022 Session 1).

Chapter
System of Particles and Rotational Motion
Topic
Torque and Equilibrium
Idea tested
Lever Arm Method

Same idea in other shifts

Asked 2× in all
  1. 2 Apr 2025, Shift 2 · Q46A wheel of radius 0.2 m rotates freely about its center when a string that is wrapped over its rim is pulled by force of 10 N as shown in…EasyNumerical valueHas a figure

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 42 of the 174 JEE Main shifts held from 2017 to 2026.