JEE Main 2025 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 2 April 2025, Shift 1, Physics Q48

Question 48 of 75 in this shift, Physics question 23 of 25, Section B.

\gamma_A

is the specific heat ratio of monoatomic gas A having 3 translational degrees of freedom.

\gamma_B

is the specific heat ratio of polyatomic gas B having 3 translational, 3 rotational degrees of freedom and 1 vibrational mode. If

\frac{\gamma_A}{\gamma_B}=\left(1+\frac{1}{n}\right)

, then the value of n is ___________.

Official answer

NTA final key.

Chapter: Kinetic Theory
Topic: Kinetic Theory of Gases
Idea tested: Specific Heat Ratio Formula

Same topic in other shifts

All Kinetic Theory of Gases questions

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