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Saturday, 31 October

JEE Main 2025 · PhysicsMultiple choiceMatch the listEasyRecall

JEE Main 7 April 2025, Shift 2, Physics Q34

Question 34 of 75 in this shift, Physics question 9 of 25, Section A.

Match List - I with List - II. List - I | List - II (A) Isothermal | (I) ΔW\Delta W (work done) =0=0 (B) Adiabatic | (II) ΔQ\Delta Q (supplied heat) =0=0 (C) Isobaric | (III) ΔU\Delta U (change in internal energy) ≠0\ne 0 (D) Isochoric | (IV) ΔU=0\Delta U=0 Choose the correct answer from the options given below :
  1. (1)(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
  2. (2)(A)-(IV), (B)-(I), (C)-(III), (D)-(II)
  3. (3)(A)-(II), (B)-(IV), (C)-(I), (D)-(III)
  4. (4)(A)-(IV), (B)-(II), (C)-(III), (D)-(I)Official answer

Official answer

Option 4

NTA final key.

Chapter
Thermodynamics
Topic
Thermodynamic Processes
Idea tested
Isothermal Process Analysis

Same idea in other shifts

Asked 3× in all
  1. 11 Apr 2023, Shift 2 · Q34The Thermodynamic process, in which internal energy of the system remains constant isEasySingle correct
  2. 24 Feb 2021, Shift 1 · Q10Match List I with List II. List I | List II (a) Isothermal | (i) Pressure constant (b) Isochoric | (ii) Temperature constant (c) Adiabatic…EasyMatch the list

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