CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 275 - 278 of 463

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Question number: 275

» Classical Mechanics » Generalized Coordinates

Appeared in Year: 2013

MCQ▾

Question

The numbers of degrees of freedom of a rigid body in d space – dimension is – (June)

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Choice (4) Response

a.

b.

c.

d.

6

Question number: 276

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

Appeared in Year: 2013

MCQ▾

Question

Let four point charges be placed at the vertices of a square of side . Let another point charge be placed at the centre of the square (see the figure)

4charges placed at the vertices of a square & 1 point at centre

4charges Placed at the Vertices of a Square & 1 Point at Centre

In figure four charges placed at the vertices of a square and one point charge is placed at the centre of the square.

Let be the electrostatic potential at a point P at a distance from the centre of the square. Then is – (December – 2013)

Choices

Choice (4) Response

a.

b.

c.

1

d.

Question number: 277

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2013

MCQ▾

Question

Let be a random variable uniformly distributed in the interval and , where is a real constant. If V is to be exponentially distributed in the interval with unit standard deviation, then the value of should be – (June)

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Choice (4) Response

a.

b.

-1

c.

1

d.

Question number: 278

» Condensed Matter Physics » Bonding of Solids

Appeared in Year: 2014

MCQ▾

Question

The van der Waals’ equation of state for a gas is given by, Where P, V and T represent the pressure, volume and temperature respectively, and and are constant parameters. At the critical point, where all the roots of the above cubic equation are degenerate, the volume is given by, (June – 2014)

Choices

Choice (4) Response

a.

b.

c.

d.

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