GATE (Graduate Aptitude Test in Engineering) Physics: Questions 197 - 203 of 659

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Question 197

Appeared in Year: 2011

Question

MCQ▾

A particle is moving under the action of a generalized potential . The magnitude of the generalized force is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 198

Appeared in Year: 2013

Question

MCQ▾

A monochromatic plane wave at oblique incidence undergoes reflection at a dielectric interface. If and are the unit vectors in the directions of incident wave, reflected wave and the normal to the surface respectively, which one of the following expressions is correct?

Choices

Choice (4)Response

a.

b.

c.

d.

Passage

There are four energy levels (where ) . The canonical partition function of two particles is, if these particles are:

Question 199 (1 of 2 Based on Passage)

Appeared in Year: 2013

Question

MCQ▾

Two distinguishable particles –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 200 (2 of 2 Based on Passage)

Appeared in Year: 2013

Question

MCQ▾

Two identical fermions –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 201

Appeared in Year: 2013

Write in Short

Short Answer▾

The degenerate eigenvalue of the matrix is (your answer should be an integer) ________.

Question 202

Appeared in Year: 2011

Question

MCQ▾

According to the single particle nuclear shell model, the spin – parity of the ground state of is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 203

Appeared in Year: 2013

Question

MCQ▾

A phosphorous doped silicon semiconductor (doping density: ) is heated from to . Which one of the following statements is CORRECT?

Choices

Choice (4)Response

a.

Position of Fermi level moves towards middle of energy gap

b.

Position of dopant level moves towards middle of energy gap

c.

Position of dopant level moves towards conduction band

d.

Position of Fermi level moves towards conduction band

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