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Saturday, 31 October

JEE Main · Physics · Kinetic Theory

Law of Equipartition

JEE Main asked Law of Equipartition 6 times in 6 of the 108 shifts Lumi analysed, in 2021, 2022, 2024 and 2025. It belongs to Kinetic Theory of Gases, in Kinetic Theory (Physics). The longest wait between two years asking it was 2 years. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
6
in 6 shifts
Years
4 of 8
First asked
2021
last in 2025
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2022, 2024 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170’200.10’210.03’220’230.05’240.13’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 3 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 in 18 shifts · 2025: 1 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

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

  • 20260 of 9
  • 20251 of 8
  • 20241 of 18
  • 20230 of 12
  • 20221 of 24
  • 20213 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: conceptual.

  • Internal energy of gas in room
  • Definition recall

Difficulty

Easy 4Medium 2Hard 0

1 of the 6 questions had a numerical answer.

Every question

All 6 questions

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

  1. 2 Apr 2025, Shift 2 · Q50The internal energy of air in 4 m×4 m×3 m4\ \mathrm{m}\times4\ \mathrm{m}\times3\ \mathrm{m} sized room at 1 atmospheric pressure will be…EasyNumerical value
  2. 8 Apr 2024, Shift 1 · Q39A mixture of one mole of monoatomic gas and one mole of a diatomic gas (rigid) are kept at room temperature (27∘27^\circC). The ratio of…EasySingle correct
  3. 26 Jun 2022, Shift 2 · Q37A flask contains argon and oxygen in the ratio of 3:2 in mass and the mixture is kept at 27∘27^\circC. The ratio of their average kinetic…EasySingle correct
  4. 18 Mar 2021, Shift 1 · Q17What will be the average value of energy along one degree of freedom for an ideal gas in thermal equilibrium at a temperature T ? (kBk_B…EasySingle correct
  5. 26 Feb 2021, Shift 2 · Q13The internal energy (U), pressure (P) and volume (V) of an ideal gas are related as U = 3PV + 4. The gas is :MediumSingle correct
  6. 25 Feb 2021, Shift 2 · Q6Given below are two statements : Statement I : In a diatomic molecule, the rotational energy at a given temperature obeys Maxwell’s…MediumTwo statements

Shifts: 25 Feb 2021, Shift 2, 26 Feb 2021, Shift 2, 18 Mar 2021, Shift 1, 26 Jun 2022, Shift 2, 8 Apr 2024, Shift 1, 2 Apr 2025, Shift 2.

Same topic

Other ideas in Kinetic Theory of Gases

Kinetic Theory of Gases has 22 ideas JEE Main has asked; 14 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas