Solid State Physics-Elements of Crystallography (GATE Physics): Questions 1 - 5 of 5

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 622 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 350.00 or

Question number: 1

» Solid State Physics » Elements of Crystallography

Appeared in Year: 2015

Short Answer Question▾

Write in Short

The lattice parameters Equation of an orthorhombic crystal are related by Equation . In units of Equation , the inter-planar separation between the Equation planes is ________ (up to three decimal places)

Passage

The dispersion relation for a one – dimensional monatomic crystal with lattice spacing a, which interacts via nearest neighbor harmonic potential is given by, Equation , where Equation is a constant of appropriate unit.

Question number: 2 (1 of 2 Based on Passage) Show Passage

» Solid State Physics » Elements of Crystallography

Appeared in Year: 2012

MCQ▾

Question

The group velocity at the boundary of the first Brillouin zone is –

Choices

Choice (4) Response

a.

Equation

b.

1

c.

Equation

d.

0

Question number: 3 (2 of 2 Based on Passage) Show Passage

» Solid State Physics » Elements of Crystallography

Appeared in Year: 2012

MCQ▾

Question

The force constant between the nearest neighbors of the lattice is –

(M is the mass of the atom)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 4

» Solid State Physics » Elements of Crystallography

Appeared in Year: 2013

MCQ▾

Question

A lattice has the following primitive vectors Equation : Equation . The reciprocal lattice corresponding to the above lattice is –

Choices

Choice (4) Response

a.

BCC lattice with cube edge of Equation

b.

FCC lattice with cube edge of Equation

c.

BCC lattice with cube edge of Equation

d.

FCC lattice with cube edge of Equation

Question number: 5

» Solid State Physics » Elements of Crystallography

Appeared in Year: 2008

MCQ▾

Question

The lattice specific heat Equation of a crystalline solid can be obtained using the Dulong Petit model, Einstein model and Debye model. At low temperature Equation ; Which one of the following statement is true ( Equation and Equation are constant) –

Choices

Choice (4) Response

a.

Dulong Petit: Equation ; Einstein: Equation ; Debye: Equation

b.

Dulong Petit: Equation ; Einstein Equation ; Debye: Equation

c.

Dulong Petit: Equation ; Einstein Equation ; Debye: Equation

d.

Dulong Petit: Equation ; Einstein Equation ; Debye: Equation

f Page
Sign In