Atomic and Molecular Physics [GATE (Graduate Aptitude Test in Engineering) Physics]: Questions 1 - 4 of 58

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Question 1

Atomic and Molecular Physics

Appeared in Year: 2014

Question

MCQ▾

The energy, for band electrons as a function of the wave vector, in the first Brillouin zone of a one dimensional monatomic lattice is shown as ( is lattice constant)

The Energy as a Function of the Wave Vector

The variation of the group velocity is most appropriately represented by

Choices

Choice (4)Response

a.

The Variation of the Group Velocity - Choice – A

b.

The Variation of the Group Velocity - Choice – B

c.

The Variation of the Group Velocity - Choice – C

d.

The Variation of the Group Velocity - Choice – D

Question 2

Appeared in Year: 2014

Question

MCQ▾

The moment of inertia of a rigid diatomic molecule A is 6 times that of another rigid diatomic molecule B. If the rotational energies of the two molecules are equal, then the corresponding values of the rotational quantum numbers are –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 3

Atomic and Molecular Physics

Appeared in Year: 2014

Question

MCQ▾

The number of normal Zeeman splitting components of transition is –

Choices

Choice (4)Response

a.

9

b.

4

c.

3

d.

8

Question 4

Atomic and Molecular Physics

Appeared in Year: 2015

Write in Short

Short Answer▾

The number of permitted transitions from in the present of a weak magnetic field is ________.

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