GATE (Graduate Aptitude Test in Engineering) Physics: Questions 14 - 16 of 659

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Question number: 14

» Atomic and Molecular Physics » Rotational and Vibration Spectra of Diatomic Molecules

Appeared in Year: 2014

MCQ▾

Question

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 number: 15

» Thermodynamics and Statistical Physics » Free Energy

Appeared in Year: 2014

MCQ▾

Question

For a free electron gas in two dimensions, the variation of the density of state, as a function of energy , is best represented by –

Choices

Choice (4) Response

a.

The density of state as a function of E - Choice A

The Density of State as a Function of E - Choice A

In figure the variation of the density of state, N (E) as a function of energy E; is shown.

b.

The density of state as a function of E - Choice B

The Density of State as a Function of E - Choice B

In figure the variation of the density of state, N (E) as a function of energy E; is shown.

c.

The density of state as a function of E - Choice C

The Density of State as a Function of E - Choice C

In figure the variation of the density of state, N (E) as a function of energy E; is shown.

d.

The density of state as a function of E - Choice D

The Density of State as a Function of E - Choice D

In figure the variation of the density of state, N (E) as a function of energy E; is shown.

Question number: 16

» Electromagnetic Theory » Electromagnetic Waves and Their Reflection

Appeared in Year: 2015

MCQ▾

Question

A plane wave after passing through an optical element emerges as , where and are the wavevector and the angular frequency, respectively. The optical element is a –

Choices

Choice (4) Response

a.

Faraday rotator

b.

Polarizer

c.

Quarter wave plate

d.

Half wave plate

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