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Previous year question hub

Classical and Quantum Statistics - Thermodynamics and Statistical Mechanics - Physics Previous Year Questions

Practice Classical and Quantum Statistics - Thermodynamics and Statistical Mechanics - Physics previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

20Papers
20Years
79Questions
1Topics

Classical and Quantum Statistics question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Classical and Quantum Statistics. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 40 50.6%
Medium 39 49.4%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 59 74.7%
Numerical Answer Type (NAT) 16 20.3%
MSQ 4 5.1%

Subject weightage

Top subjects by unique question coverage.

Physics
79 Qs

Most asked topics

Top topics across the included previous year papers.

Thermodynamics and Statistical Mechanics
79 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Classical and Quantum Statistics
79 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Physics (PH) 2026
6 Qs
Physics (PH) 2025
2 Qs
Physics (PH) 2024
4 Qs
Physics (PH) 2023
3 Qs
Physics (PH) 2022
1 Qs
Physics (PH) 2021
3 Qs
Physics (PH) 2020
4 Qs
Physics (PH) 2019
3 Qs
Physics (PH) 2018
4 Qs
Physics (PH) 2017
3 Qs
Physics (PH) 2016
3 Qs
Physics (PH) 2015
4 Qs
Physics (PH) 2014
3 Qs
Physics (PH) 2013
5 Qs
Physics (PH) 2012
5 Qs
Physics (PH) 2011
4 Qs
Physics (PH) 2010
4 Qs
Physics (PH) 2009
3 Qs
Physics (PH) 2008
5 Qs
Physics (PH) 2007
10 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Physics (PH) 202620266View paper
Physics (PH) 202520252View paper
Physics (PH) 202420244View paper
Physics (PH) 202320233View paper
Physics (PH) 202220221View paper
Physics (PH) 202120213View paper
Physics (PH) 202020204View paper
Physics (PH) 201920193View paper
Physics (PH) 201820184View paper
Physics (PH) 201720173View paper
Physics (PH) 201620163View paper
Physics (PH) 201520154View paper
Physics (PH) 201420143View paper
Physics (PH) 201320135View paper
Physics (PH) 201220125View paper
Physics (PH) 201120114View paper
Physics (PH) 201020104View paper
Physics (PH) 200920093View paper
Physics (PH) 200820085View paper
Physics (PH) 2007200710View paper

All Classical and Quantum Statistics previous year questions

Practice every matching question in batches of 20, with every available option.

1
2007 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2007
The partition function of a single gas molecule is Z_{g}. The partition function of N such non-interacting gas molecules is then given by
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2
2007 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2007
The partition function of a single gas molecule is \(Z_g\). The partition function of \(N\) such non-interacting gas molecules is then given by
Open complete paper
3
2007 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2007
It is necessary to apply quantum statistics to a system of particles if
Open complete paper
4
2007 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2007
A system has energy levels \( E_0, 2E_0, 3E_0, ... \), where the excited states are triply degenerate. Four non-interacting bosons are placed in this system. If the total energy of these bosons is \( 5E_0 \), the number of microstates is
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5
2007 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2007
The partition function of a single oscillator with energy levels \((n + \frac{1}{2})\hbar\omega\) is given by
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6
2007 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2007
The average number of energy quanta of the oscillators is given by
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7
2007 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2007
The partition function of a single oscillator with energy levels \((n + \frac{1}{2}) \hbar \omega\) is given by
Open complete paper
8
2008 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2008
A system containing \( N \) non-interacting localized particles of spin \( 1/2 \) and magnetic moment \( \mu \) each is kept in constant external magnetic field \( B \) and in thermal equilibrium at temperature \( T \). The magnetization of the system is.
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9
2008 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2008
Two identical particles have to be distributed among three energy levels. Let \( r_B \), \( r_F \) and \( r_C \) represent the ratios of probability of finding two particles to that of finding one particle in a given energy state. The subscripts \( B \), \( F \) and \( C \) correspond to whether the particles are bosons, fermions and classical particles, respectively. Then, \( r_B : r_F : r_C \) is equal to
Open complete paper
10
2008 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2008
A photon gas is at thermal equilibrium at temperature \(T\). The mean number of photons in an energy state \(\varepsilon = \hbar\omega\) is
Open complete paper
11
2008 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2008
Consider a system of \(N\) atoms of an ideal gas of type \(A\) at temperature \(T\) and volume \(V\). It is kept in diffusive contact with another system of \(N\) atoms of another ideal gas of type \(B\) at the same temperature \(T\) and volume \(V\). Once the combined system reaches equilibrium,
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12
2008 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2008
Consider a system of two non-interacting classical particles which can occupy any of the three energy levels with energy values \(E=0, \varepsilon\) and \(2\varepsilon\) having degeneracies \(g(E)=1, 2\) and \(4\) respectively. The mean energy of the system is
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13
2009 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2009
The probability that an energy level \(\varepsilon\) at a temperature \(T\) is unoccupied by a fermion of chemical potential \(\mu\) is given by
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14
2009 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2009
The de Broglie wavelength of particles of mass \(m\) with average momentum \(p\) at a temperature T in three dimensions is given by
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15
2009 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2009
The specific heat of the system is given by
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16
2010 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2010

A system of N non-interacting classical point particles is constrained to move on the two-dimensional surface of a sphere. The internal energy of the system is

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17
2010 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2010
CO_2 molecule has the first few energy levels uniformly separated by approximately 2.5 meV. At a temperature of 300 K, the ratio of the number of molecules in the 4th excited state to the number in the 2nd excited state is about
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18
2010 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2010
The specific heat of the photon gas varies with temperature as
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19
2010 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2010

The pressure of the photon gas is

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20
2011 · Physics · Thermodynamics and Statistical Mechanics · Classical and Quantum Statistics
Physics (PH) 2011
A system of \( N \) non-interacting and distinguishable particles of spin 1 is in thermodynamic equilibrium. The entropy of the system is
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Showing 20 of 74 questions