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Saturday, 31 October

JEE Main · Physics · System of Particles and Rotational Motion

MOI of Standard Shapes

JEE Main asked MOI of Standard Shapes 5 times in 5 of the 108 shifts Lumi analysed, in 2020, 2021, 2022, 2023 and 2026. It belongs to Moment of Inertia, in System of Particles and Rotational Motion (Physics). The longest wait between two years asking it was 3 years.

Updated 2026-10-24

Times asked
5
in 5 shifts
Years
5 of 8
First asked
2020
last in 2026
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2022, 2023 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170.08’200.03’210.03’220.07’230’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 1 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20261 of 9
  • 20250 of 8
  • 20240 of 18
  • 20231 of 12
  • 20221 of 24
  • 20211 of 24
  • 20201 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Torque and rotations to stop a sphere
  • Rotational share of rolling kinetic energy

Difficulty

Easy 1Medium 4Hard 0

4 of the 5 questions had a numerical answer.

Every question

All 5 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 6 Apr 2026, Shift 1 · Q31A solid sphere of radius 4 cm and mass 5 kg is rotating (rotation axis is passing through the centre of the sphere) with an angular…MediumSingle correct
  2. 12 Apr 2023, Shift 1 · Q53For a rolling spherical shell, the ratio of rotational kinetic energy and total kinetic energy is x5\frac{x}{5}. The value of xx is ______MediumNumerical value
  3. 25 Jun 2022, Shift 2 · Q54Moment of Inertia (M.I.) of four bodies having same mass ‘MM’ and radius ‘2R2R’ are as follows : I1\mathrm{I}_1 = M.I. of solid sphere…MediumNumerical value
  4. 25 Jul 2021, Shift 2 · Q22A solid disc of radius 20 cm and mass 10 kg is rotating with an angular velocity of 600 rpm, about an axis normal to its circular plane…EasyNumerical value
  5. 9 Jan 2020, Shift 1 · Q22One end of a straight uniform 1 m long bar is pivoted on horizontal table. It is released from rest when it makes an angle 30∘30^{\circ}…MediumNumerical valueHas a figure

Shifts: 9 Jan 2020, Shift 1, 25 Jul 2021, Shift 2, 25 Jun 2022, Shift 2, 12 Apr 2023, Shift 1, 6 Apr 2026, Shift 1.

Same topic

Other ideas in Moment of Inertia

Moment of Inertia has 18 ideas JEE Main has asked; 9 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas