Solid State Physics-Diffraction Methods for Structure Determination (GATE Physics): Questions 1 - 4 of 11

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Question number: 1

» Solid State Physics » Diffraction Methods for Structure Determination

Appeared in Year: 2014

Short Answer Question▾

Write in Short

Neutrons moving with speed Equation are used for the determination of crystal structure. If the Bragg angle for the first order diffraction is Equation , the interplanar spacing of the crystal is Equation .

(Given: Equation )

Question number: 2

» Solid State Physics » Diffraction Methods for Structure Determination

Appeared in Year: 2012

MCQ▾

Question

A simple cubic crystal with lattice parameter Equation undergoes transition into a tetragonal structure with lattice parameters Equation and Equation , below a certain temperature. The ratio of the interplanar spacing of Equation planes for the cubic and the tetragonal structures is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Solid State Physics » Diffraction Methods for Structure Determination

Appeared in Year: 2011

MCQ▾

Question

For a three –dimensional crystal having N primitive unit cells with a basis of Equation atoms, the number of optical branches is –

Choices

Choice (4) Response

a.

Equation

b.

3

c.

Equation

d.

Equation

Question number: 4

» Solid State Physics » Diffraction Methods for Structure Determination

Appeared in Year: 2013

MCQ▾

Question

Two gases separated by an impermeable but movable partition are allowed to freely exchange energy. At equilibrium, the two sides will have the same –

Choices

Choice (4) Response

a.

Pressure and volume

b.

Volume and energy

c.

Volume and temperature

d.

Pressure and temperature

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