Thermodynamic and Statistical Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 7 - 10 of 64

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Question number: 7

» Thermodynamic and Statistical Physics » Bose-Einstein Condensation

Appeared in Year: 2014

MCQ▾

Question

An ideal Bose gas is confined inside a container that is connected to a particle reservoir. Each particle can occupy a discrete set of single – particle quantum states. If the probability that a particular quantum state is unoccupied is 0.1, then the average number of bosons in that state is – (December)

Choices

Choice (4) Response

a.

10

b.

11

c.

8

d.

9

Question number: 8

» Thermodynamic and Statistical Physics » Phase Space

Appeared in Year: 2014

MCQ▾

Question

The Hamiltonian of a classical particle moving in one dimension is; where is a positive constant and and are its momentum and position respectively. Given that it’s total energy the available volume of phase space depends on as – (December)

Choices

Choice (4) Response

a.

b.

Is independent of

c.

d.

Question number: 9

» Thermodynamic and Statistical Physics » Micro- and Macro-States

Appeared in Year: 2012

MCQ▾

Question

Consider a system of non – interacting particle in d dimensions obeying the dispersion relation where is the energy, k is wavevector, s is an integer and A a constant. The density of states, is proportional to – (June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 10

» Thermodynamic and Statistical Physics » Laws of Thermodynamics

Appeared in Year: 2012

MCQ▾

Question

Let be the work done in a quasistatic reversible thermodynamic process. Which of the following statement about is correct? (December)

Choices

Choice (4) Response

a.

is a perfect differential if the process is adiabatic

b.

is always a perfect differential

c.

cannot be a perfect differential

d.

is a perfect differential if the process is isothermal

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