Thermodynamics and Statistical Physics (GATE (Graduate Aptitude Test in Engineering) Physics): Questions 13 - 16 of 82

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Question number: 13

» Thermodynamics and Statistical Physics » Bose-Einstein Condensation

Appeared in Year: 2015

MCQ▾

Question

In Bose – Einstein condensates, the particles –

Choices

Choice (4) Response

a.

Have overlapping wave functions

b.

Condense in real space

c.

Have large and positive chemical potential

d.

Have strong inter – particle attraction

Question number: 14

» Thermodynamics and Statistical Physics » Partition Function

Appeared in Year: 2012

MCQ▾

Question

Consider a system whose three energy levels are given by . The energy level is two – fold degenerate and the other two are non – degenerate. The partition function of the system with is given by –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 15

» Thermodynamics and Statistical Physics » Degenerate Fermi Gas

Appeared in Year: 2012

MCQ▾

Question

For an ideal Fermi gas in three dimensions, the electron velocity at the Fermi surface is related to electron concentration as,

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 16

» Thermodynamics and Statistical Physics » Partition Function

Appeared in Year: 2012

MCQ▾

Question

A paramagnetic system consisting of N spin – half particles, is placed in an external magnetic field. It is found that spins are aligned parallel and the remaining spins aligned antiparallel to the magnetic field. The statistic entropy of the system is –

Choices

Choice (4) Response

a.

b.

c.

d.

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