CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 111 - 113 of 463

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Question number: 111

» Electromagnetic Theory » Electrostatics: Gauss's Law and Its Applications

Appeared in Year: 2012

MCQ▾

Question

Four charges (two + q and two –q) are kept fixed at the four vertices of a square of side a as shown

Four charges kept at vertices of a square

Four Charges Kept at Vertices of a Square

In figure four charges (two + q and two –q) are kept fixed at the four vertices of a square of side a.

At the point P which is at a distance R from the centreEquation , the potential is proportional to – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 112

» Mathematical Methods of Physics » Poles, Residues & Evaluation of Integrals

Appeared in Year: 2014

MCQ▾

Question

If C is the contour defined byEquation , the value of the signal

Equation

is – (June)

Choices

Choice (4) Response

a.

Equation

b.

0

c.

d.

Equation

Question number: 113

» Thermodynamic and Statistical Physics » Free Energy

Appeared in Year: 2013

MCQ▾

Question

Two different thermodynamic system are described by the following equations of state –

Equation

Equation

Where Equation and Equation are respectively the temperatures, the mole numbers and the internal energies of the two systems, and R is the gas constant. Let Equation denote the total energy when these two systems are put in contact and attain thermal equilibrium. The ratio Equation is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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