Thermodynamic and Statistical Physics-Bose-Einstein Condensation (CSIR Physical Sciences): Questions 1 - 4 of 6

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Question number: 1

» 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: 2

» Thermodynamic and Statistical Physics » Bose-Einstein Condensation

Appeared in Year: 2014

MCQ▾

Question

The recently discovered Higgs boson at the LHC experiment has a decay mode into a photon and a Z boson. If the rest masses of the Higgs and Z boson are 125GeVc2 and 90GeVc2 respectively, and the decaying Higgs particle is at rest, the energy of photon will approximately be – (June – 2014)

Choices

Choice (4) Response

a.

15GeV

b.

30GeV

c.

353GeV

d.

35GeV

Question number: 3

» Thermodynamic and Statistical Physics » Bose-Einstein Condensation

Appeared in Year: 2012

MCQ▾

Question

Bose condensation occurs in liquid He4 kept at ambient pressure at 2.17K . At which temperature will Bose condensation occur in He4 in gaseous state, the density of which is 1000 times smaller than that of liquid He4 ?

(Assume that it is a perfect Bose gas) (June)

Choices

Choice (4) Response

a.

21.7μk

b.

2.17μk

c.

21.7mk

d.

2.17mk

Question number: 4

» Thermodynamic and Statistical Physics » Bose-Einstein Condensation

Appeared in Year: 2012

MCQ▾

Question

Non – interacting boson undergo Bose – Einstein Condensation (BEC) when trapped in a three – dimensional isotropic simple harmonic potential. For BEC to occur, the chemical potential must be equal to –

(December)

Choices

Choice (4) Response

a.

3ω2

b.

ω2

c.

0

d.

ω

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