CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 305 - 308 of 463

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Question number: 305

» Thermodynamic and Statistical Physics » Bose-Einstein Condensation

Appeared in Year: 2012

MCQ▾

Question

Non – interacting boson undergo Bose – Einstein Condensation (BEC) when trapped in a three – dimensional isotropic simple harmonic potential. For BEC to occur, the chemical potential must be equal to –

(December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

0

d.

Equation

Question number: 306

» Classical Mechanics » Poisson Brackets

Appeared in Year: 2012

MCQ▾

Question

The Poisson bracket Equation has the value – (June)

Choices

Choice (4) Response

a.

3

b.

1

c.

Equation

d.

Equation

Question number: 307

» Condensed Matter Physics » Elastic Properties

Appeared in Year: 2012

MCQ▾

Question

A resistance strain gauge is fastened to a steel fixture and subjected to a stress of Equation . If the gauge factor is 3 and the modulus of elasticity of steel is Equation , then the fractional change in resistance of the strain gauge due to the applied stress is –

(Note: The gauge factor is defined as the ratio of the fractional change in resistance to the fractional change in length. ) (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 308

» Nuclear and Particle Physics » Application of Symmetry Arguments to Particle Reactions

Appeared in Year: 2012

MCQ▾

Question

The muon has mass Equation and mean lifetime Equation in its rest frame. The mean distance traversed by muon of energy Equation before decaying is approximately – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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