Thermodynamic and Statistical Physics (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 30 - 33 of 64

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Question number: 30

» Thermodynamic and Statistical Physics » Free Energy

Appeared in Year: 2013

MCQ▾

Question

If the energy dispersion of a two – dimensional electron system is Equation , where Equation is the velocity and k is the momentum, then the density of states Equation depends on the energy as, (June)

Choices

Choice (4) Response

a.

Equation

b.

Constant

c.

Equation

d.

E

Question number: 31

» Thermodynamic and Statistical Physics » Thermodynamic Potentials

Appeared in Year: 2014

MCQ▾

Question

A Carnot cycle operates as a heat engine between two bodies of equal heat capacity until their temperature become equal. If the initial temperature of the bodies are Equation and Equation , respectively, and Equation , then their common final temperature is – (Dec– 2013)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 32

» Thermodynamic and Statistical Physics » Random Walk

Appeared in Year: 2014

MCQ▾

Question

In one dimension, a random walker takes a step with equal probability to the left or right. What is the probability that the walker returns to the starting point after 4 steps? (June – 2014)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 33

» Thermodynamic and Statistical Physics » Diffusion Equation

Appeared in Year: 2013

MCQ▾

Question

Consider the following ratio of the partial decay widest,

Equation

Equation

If the effects pf electromagnetic and weak interaction are neglected, then Equation and Equation are respectively is given as, (Dec -2013)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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