CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 161 - 163 of 463

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Question number: 161

» Thermodynamic and Statistical Physics » Phase Equilibria

Appeared in Year: 2011

MCQ▾

Question

A particle is confined to the region Equation by a potential which increases linearly as Equation . The mean position of the particle at temperature T is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 162

» Thermodynamic and Statistical Physics » Random Walk

Appeared in Year: 2014

MCQ▾

Question

A random walker takes a step of unit length in the positive direction with probability Equation and a step of unit length in the negative direction with probabilityEquation . The mean displacement of the walker after n steps is – (December)

Choices

Choice (4) Response

a.

0

b.

Equation

c.

Equation

d.

Equation

Question number: 163

» Electromagnetic Theory » Scalar and Vector Potentials

Appeared in Year: 2014

MCQ▾

Question

A scalar and vector potential Equation and Equation are determine up to a gauge transformation Equation andEquation , where Equation is an arbitrary continuous and differential function of Equation andEquation . If we further impose the Lorenz gauge condition,

Equation

Then a possible choice for the gauge function Equation is – (WhereEquation are nonzero constants with Equation ) (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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