Learn

Saturday, 31 October

JEE Main · Physics · Thermodynamics

Polytropic Process Analysis

JEE Main asked Polytropic Process Analysis 5 times in 5 of the 108 shifts Lumi analysed, in 2021 and 2024. It belongs to Thermodynamic Processes, in Thermodynamics (Physics). The longest wait between two years asking it was 3 years. In 2021 and 2024 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
5
in 5 shifts
Years
2 of 8
First asked
2021
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

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

00.050.10’170’200.10’210’220’230.09’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 3 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 2 in 18 shifts · 2025: 0 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
  • 20250 of 8
  • 20242 of 18
  • 20230 of 12
  • 20220 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

Diagram based is the usual form. Skill tested: calculation.

  • True statement selection on molar heat capacity from graph
  • Work done in polytropic process

Difficulty

Easy 1Medium 3Hard 1

2 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. 30 Jan 2024, Shift 1 · Q38Two thermodynamical processes are shown in the figure. The molar heat capacity for process A and B are CAC_A and CBC_B. The molar heat…HardDiagram basedHas a figure
  2. 1 Feb 2024, Shift 1 · Q38The pressure and volume of an ideal gas are related as PV32=KPV^{\frac{3}{2}} = K (Constant). The work done when the gas is taken from state A…MediumSingle correct
  3. 26 Feb 2021, Shift 2 · Q23The volume V of a given mass of monoatomic gas changes with temperature T according to the relation V = KT23T^{\frac{2}{3}}. The workdone…MediumNumerical value
  4. 25 Feb 2021, Shift 2 · Q5Thermodynamic process is shown below on a P-V diagram for one mole of an ideal gas. If V2=2V1V_2 = 2V_1 then the ratio of temperature…EasyDiagram basedHas a figure
  5. 25 Feb 2021, Shift 1 · Q29In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3kV^{3}. The work done when the temperature changes…MediumNumerical value

Shifts: 25 Feb 2021, Shift 2, 25 Feb 2021, Shift 1, 26 Feb 2021, Shift 2, 30 Jan 2024, Shift 1, 1 Feb 2024, Shift 1.

Same topic

Other ideas in Thermodynamic Processes

Thermodynamic Processes has 16 ideas JEE Main has asked; 8 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas