Canonical Ensemble — CSIR Net PYQ (Question 6)

A Canonical Ensemble previous-year question (PYQ) from Statistical Mechanics (CSIR Net). Read the question, check the correct answer, then practise the full topic.

Question 6 of 36 · 5.0 marks

An atom has a non-degenerate ground-state and a doubly-degenerate excited state. The energy difference between the two states is

ϵ

. The specific heat at very low temperatures (

β ϵ ≫ 1

) is given by

1 $k_{B} (β ϵ)$
2 $k_{B} e^{- β ϵ}$
3 $2 k_{B} (β ϵ)^{2} e^{- β ϵ}$
4 $k_{B}$

Correct answer: Option 3

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About this question

This Canonical Ensemble PYQ is part of the Statistical Mechanics section of CSIR Net. Browse more Canonical Ensemble questions or join the PhysicsByAaryan live batch for full conceptual coverage.