CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 207 - 209 of 463

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Question number: 207

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2014

MCQ▾

Question

The effective spin – spin interaction between the electron spin and the proton spin in the ground state of the Hydrogen atom is given by . As a result of this interaction the energy levels split by an amount – (December)

Choices

Choice (4) Response

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b.

c.

d.

Question number: 208

» Electromagnetic Theory » Reflection and Refraction

Appeared in Year: 2011

MCQ▾

Question

Circularly polarized light with intensity is incident normally on a glass prism as shown in the figure. The index of refraction of glass is . The intensity I of light emerging from the prism is:

A circularly polarized light incident on a prism

A Circularly Polarized Light Incident on a Prism

Figure shows circularly polarized light with intensity I0 is incident normally on a glass prism.

(June)

Choices

Choice (4) Response

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b.

c.

d.

Question number: 209

» Thermodynamic and Statistical Physics » Blackbody Radiation

Appeared in Year: 2011

MCQ▾

Question

A cavity contains blackbody radiation in equilibrium at temperature T. The specific heat per unit volume of the photon gas in the cavity is of the form , where is a constant. The cavity is expanded to twice its original volume and then allowed to equilibrate at the same temperature T. The new internal energy per unit volume is – (June)

Choices

Choice (4) Response

a.

b.

c.

d.

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