Thermodynamic and Statistical Physics-Planck's Distribution Law (CSIR Physical Sciences): Questions 1 - 3 of 4

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Question number: 1

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2013

MCQ▾

Question

The speed Equation of the molecules of mass m of an ideal gas obeys Maxwell’s velocity distribution law at an equilibrium temperature T. Let Equation denote the components of the velocity and Equation the Boltzmann constant. The average value of Equation where Equation and Equation are constant, is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2014

MCQ▾

Question

A system can have three energy levels: Equation . The level Equation is doubly degenerate, while the others are non-degenerate. The average energy at inverse temperature Equation is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Thermodynamic and Statistical Physics » Planck's Distribution Law

MCQ▾

Question

In low density oxygen gas at low temperature, only the translational and rotational modes of the molecules are excited. The specific heat per molecule of the gas is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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