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Statistical Physics test

Total questions: 15

Worksheet time: 3mins

Name
Class
Date
1.

Fermi-Dirac statistics is for the

a)

Distinguishable particles

b)

Symmetrical Particles

c)

Particles with half integral spin

d)

Particles with integral spin

2.

At T > 0K, the probability of a state with E > EF filled is zero.

a)

True

b)

False

3.

For all the quantum states with energy greater than Fermi energy to be empty in a Fermi-Dirac system, the temperature should be

a)

273 K

b)

373 K

c)

0 K

d)

100 K

4.

Bose-Einstein statistics is for the

a)

Distinguishable particles

b)

Symmetrical Particles

c)

Particles with half integral spin

d)

Particles with integral spin.

5.

During Bose-Einstein condensation all the atoms fall back to the

a)

Ground state

b)

First excited state

c)

Highest Excited state

d)

Insufficient information

6.

Phase space is a

a)

3 Dimensional Space

b)

4 Dimensional Space

c)

5 Dimensional Space

d)

6 Dimensional Space

7.

Maxwell-Boltzmann law is for the

a)

Distinguishable particles

b)

Indistinguishable Particles

c)

Particles with half integral spin

d)

Particles with integral spin

8.

The average kinetic energy associated with each degree of freedom is

a)

kT

b)

2kT

c)

kT/2

d)

kT/4

9.

Which one of the following is the most probable speed?

a)

A

b)

B

c)

C

d)

D

10.

The density of molecules is maximum at which speed?

a)

Vrms

b)

Vmp

c)

Vmean

d)

Vinst

11.

The Kinetic Energy of the particle is dependent on Temperature only.

a)

True

b)

False

12.

The difference between fermions and bosons is that bosons do not obey ______

a)

Aufbau principle

b)

Pauli’s Exclusion Principle

c)

Hund’s Rule of Maximum Multiplicity

d)

Heisenberg’s Uncertainty Principle

13.

In equilibrium state, the thermodynamic probability of a system is

a)

zero

b)

maximum

c)

minimum but not 1

d)

one

14.

Striling’s approximation ln N!

a)

N ln N-N

b)

N/2 ln N+2

c)

ln N!

d)

N ln N+N

15.

Mathematical probability always lies between _______

a)

a) 0 and infinite

b)

0 and 1

c)

infinite and + infinite

d)

1 and infinite