JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyRecall

JEE Main 4 April 2024, Shift 2, Physics Q40

Question 40 of 90 in this shift, Physics question 10 of 30, Section A.

The translational degrees of freedom (

f_t

) and rotational degrees of freedom (

f_r

) of

CH_4

molecule are:

(1) $f_t = 3$ and $f_r = 2$
(2) $f_t = 2$ and $f_r = 3$
(3) $f_t = 3$ and $f_r = 3$ Official answer
(4) $f_t = 2$ and $f_r = 2$

Official answer

Option 3

NTA final key.

Chapter: Kinetic Theory
Topic: Kinetic Theory of Gases
Idea tested: Degrees of Freedom

Same idea in other shifts

Asked 4× in all

10 Apr 2023, Shift 1 · Q32Match List I with List II : List I List II (A) 3 Translational degrees of freedom (I) Monoatomic gases (B) 3 Translational, 2 rotational…EasyMatch the list
27 Jul 2022, Shift 2 · Q39Which statements are correct about degrees of freedom ? (A) A molecule with n degrees of freedom has n $^2$ different ways of storing…MediumOther
28 Jun 2022, Shift 1 · Q58The total internal energy of two mole monoatomic ideal gas at temperature T = 300 K will be ___________ J. (Given R = 8.31 J/mol.K)EasyNumerical value

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.