CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 29 - 30 of 463

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Question number: 29

» Thermodynamic and Statistical Physics » Classical and Quantum Statistics

Appeared in Year: 2013

MCQ▾

Question

For temperature T1 > T2, the qualitative temperature dependence of the probability distribution of the speed of molecule in three dimensions is correctly represented by the following figure: (June)

Choices

Choice (4) Response

a.

Probability distribution of speed vs speed: Choice A

Probability Distribution of Speed vs Speed: Choice A

In figure the qualitative temperature dependence of the probability distribution of speed of molecule in three dimensions is represented.

b.

Probability distribution of speed vs speed: Choice B

Probability Distribution of Speed vs Speed: Choice B

In figure the qualitative temperature dependence of the probability distribution of speed of molecule in three dimensions is represented.

c.

Probability distribution of speed vs speed: Choice C

Probability Distribution of Speed vs Speed: Choice C

In figure the qualitative temperature dependence of the probability distribution of speed of molecule in three dimensions is represented.

d.

Probability distribution of speed vs speed: Choice D

Probability Distribution of Speed vs Speed: Choice D

In figure the qualitative temperature dependence of the probability distribution of speed of molecule in three dimensions is represented.

Question number: 30

» Electromagnetic Theory » Dynamics of Charged Particles in Static Electromagnetic Field

Appeared in Year: 2014

MCQ▾

Question

A charged particle moves in a helical path under the influence of a constant magnetic field. The initial velocity is such that the component along the magnetic field is twice the component in the plane normal to magnetic field.

A charged particle moves in a helical path

A Charged Particle Moves in a Helical Path

Figure shows a charged particle moves in a helical path under the influence of a constant magnetic field.

The ratio of the pinch to the radius R of the helical path is –

(December)

Choices

Choice (4) Response

a.

b.

c.

d.

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