Learn

Saturday, 31 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueHardMulti-step

JEE Main 27 August 2021, Shift 1, Physics Q24

Question 24 of 90 in this shift, Physics question 24 of 30, Section B.

A body of mass (2M) splits into four masses {m, M −- m, m, M −- m}, which are rearranged to form a square as shown in the figure. The ratio of Mm\frac{\mathrm{M}}{\mathrm{m}} for which, the gravitational potential energy of the system becomes maximum is x:1x:1. The value of xx is __________.

The figure, in words

A square of side d with a mass at each corner: m at top-left, M −- m at top-right, M −- m at bottom-left, m at bottom-right; both the vertical and horizontal sides are marked d.

Official answer

2

NTA final key.

Chapter
Gravitation
Topic
Gravitational Potential
Idea tested
Potential Energy of Systems

Same idea in other shifts

Asked 2× in all
  1. 27 Jun 2022, Shift 2 · Q36Four spheres each of mass mm form aa square of side dd (as shown in figure). A fifth sphere of mass MM is situated at the centre of…MediumSingle correctHas 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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.