CSIR Physical Sciences: Questions 277 - 280 of 401

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Question number: 277

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2013

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

-1

c.

1

d.

Equation

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, Equation Where P, V and T represent the pressure, volume and temperature respectively, and Equation and Equation 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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 279

» Thermodynamic and Statistical Physics » Fermi Gases

Appeared in Year: 2014

MCQ▾

Question

The pressure of a nonrelativistic free Fermi gas in three – dimension depends, at Equation , on the density of fermions Equation as. (June – 2014)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 280

» Atomic & Molecular Physics » Relativistic Corrections for Energy Levels of Hydrogen Atom

Appeared in Year: 2014

MCQ▾

Question

A permanently deformed even – even nucleus with Equation has rotational energy 93 KeV. The energy of next excited state is – (June – 2014)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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