Condensed Matter Physics-Diffraction and the Structure Factor (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1 - 3 of 3

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Passage

A narrow beam of X – rays with wavelength Equation is reflected from an ionic crystal with an fcc lattice structure with a density of Equation . The molecular weight is Equation Equation . (June)

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

» Condensed Matter Physics » Diffraction and the Structure Factor

Appeared in Year: 2011

MCQ▾

Question

The sine of the angle corresponding to Equation reflection is:

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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

» Condensed Matter Physics » Diffraction and the Structure Factor

Appeared in Year: 2011

MCQ▾

Question

The lattice constant is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Condensed Matter Physics » Diffraction and the Structure Factor

Appeared in Year: 2016

MCQ▾

Question

Consider a one – dimensional chain of atoms with lattice constant Equation . The energy of an electron with wave – vector Equation is Equation , where Equation and Equation are constants. If an electric field Equation is applied in the positive Equation direction, the time dependent velocity of an electron is:

(In the following Equation is the constant) (December)

Choices

Choice (4) Response

a.

proportional of Equation

b.

proportional to Equation

c.

proportional to Equation

d.

independent of Equation

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