Condensed Matter Physics-Free Electron Theory (CSIR Physical Sciences): Questions 1 - 2 of 2

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Question number: 1

» Condensed Matter Physics » Free Electron Theory

Appeared in Year: 2014

MCQ▾

Question

The dispersion relation for electron in an f. c. c. crystal is given, in the tight binding approximation, by Equation ; where a is the lattice constant and Equation is a constant with the dimension of energy. The x – component of the velocity of the electrons at Equation is – (June – 2014)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Condensed Matter Physics » Free Electron Theory

Appeared in Year: 2014

MCQ▾

Question

Consider an electron in a b. c. c. lattice with lattice constant Equation . A single particle wavefunction that satisfies the Bloch theorem will have the form Equation , with Equation being – (June – 2014)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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