CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 82 - 85 of 463

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Question number: 82

» Thermodynamic and Statistical Physics » Micro- and Macro-States

Appeared in Year: 2012

MCQ▾

Question

The entropy of a system, S, is related to the accessible phase space volume by where E, N and V are the energy, number of particles and volume respectively. From this one can conclude that – (December)

Choices

Choice (4) Response

a.

Oscillates during evolution to equilibrium

b.

Does not change during evolution to equilibrium

c.

Is a maximum at equilibrium

d.

Is a minimum at equilibrium

Question number: 83

» Mathematical Methods of Physics » Taylor & Laurent Series

Appeared in Year: 2012

MCQ▾

Question

The first few terms in the Laurent series for in the region , and around is, (June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 84

» Electronics and Experimental Methods » Frequency Dependence

Appeared in Year: 2014

MCQ▾

Question

An RC network produces a phase – shift of 300. How many such RC networks should be cascaded together and connected to a Common Emitter amplifier so that the final circuit behaves as an oscillator? (June)

Choices

Choice (4) Response

a.

12

b.

9

c.

6

d.

3

Question number: 85

» Quantum Mechanics » Spin-Orbit Coupling

Appeared in Year: 2012

MCQ▾

Question

The minimum energy of a collection of 6 non – interacting electrons of spin and mass placed in a one dimensional infinite square well potential of width L is – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

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