Thermodynamic and Statistical Physics-Fermi Gases (CSIR Physical Sciences): Questions 1 - 2 of 2

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Question number: 1

» Thermodynamic and Statistical Physics » Fermi Gases

Appeared in Year: 2014

MCQ▾

Question

The pressure of a nonrelativistic free Fermi gas in three – dimension depends, at T=0 , on the density of fermions n as. (June – 2014)

Choices

Choice (4) Response

a.

n53

b.

n13

c.

n23

d.

n43

Question number: 2

» Thermodynamic and Statistical Physics » Fermi Gases

Appeared in Year: 2011

MCQ▾

Question

The energy levels of electrons of mass ‘m’ and charge ‘e’ confined in an area A in the xy – plane with a uniform magnetic field B applied in the z – direction are given by En=(n+12)eBmc,n=0, 1,2, the degeneracy of each level is eBAc . The lowest level is completely filled and the others are empty. The Fermi energy 2N2πmA , where, N is the total number of electrons, is – (December)

Choices

Choice (4) Response

a.

Coincident with the n=0 level

b.

Midway between the n=0 and the n=1 levels

c.

Midway between the n=1 and the n=2 levels

d.

Coincident with the n=1 level

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