Condensed Matter Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 11 - 16 of 19

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Passage

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

Question number: 11 (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 reflection is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 12 (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.

b.

c.

d.

Passage

A flux quantum (fluxoid) is approximately equal to . A type II superconductor is placed in a small magnetic field, which is then slowly increased till the field starts penetrating the superconductor. The strength of the field at this point is gauss. (June)

Question number: 13 (1 of 2 Based on Passage) Show Passage

» Condensed Matter Physics » Superconductivity » Type -II Superconductors

Appeared in Year: 2016

MCQ▾

Question

The applied field is further increased till superconductivity is completely destroyed. The strength of the field is now . The correlation length of the superconductor is:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 14 (2 of 2 Based on Passage) Show Passage

» Condensed Matter Physics » Superconductivity » Type -II Superconductors

Appeared in Year: 2016

MCQ▾

Question

The penetrate depth of this superconductor is –

Choices

Choice (4) Response

a.

b.

c.

d.

Passage

The two dimensional lattice of graphene is an arrangement of Carbon atoms forming a honeycomb lattice of lattice spacing , as shown below. The Carbon atoms occupy the vertices. (June)

The two dimensional lattice

The Two Dimensional Lattice

In figure the two dimensional lattice of graphene is an arrangement of Carbon atoms forming a honeycomb lattice spacing a is shown.

Question number: 15 (1 of 2 Based on Passage) Show Passage

» Condensed Matter Physics » Bravais Lattices

Appeared in Year: 2011

MCQ▾

Question

The Wigner – Seitz cell has an area of –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 16 (2 of 2 Based on Passage) Show Passage

» Condensed Matter Physics » Bravais Lattices

Appeared in Year: 2011

MCQ▾

Question

The Bravais lattice for this array is a –

Choices

Choice (4) Response

a.

Rectangular lattice with basis vector and

b.

Hexagonal lattice with basis vector and

c.

Rectangular lattice with basis vector and

d.

Hexagonal lattice with basis vector and

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