CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 353 - 355 of 463

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Question number: 353

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2011

MCQ▾

Question

Two gravitating bodies A and B with masses and , respectively, are moving I circular orbit. Assume that and let the radius of the orbit of body A be . If the body A is losing mass adiabatically, its orbital radius is proportional to –

(June)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 354

» Mathematical Methods of Physics » Linear Ordinary Differential Equations of First & Second Order

Appeared in Year: 2011

MCQ▾

Question

Let and be two linearly independent solutions of the differential equation, and let . If , then is given by, (December)

Choices

Choice (4) Response

a.

1

b.

c.

d.

Question number: 355

» Thermodynamic and Statistical Physics » Fermi Gases

Appeared in Year: 2011

MCQ▾

Question

The energy levels of electrons of mass ‘m’ and charge ‘e’ confined in an area A in the xy – plane with a uniform magnetic field B applied in the z – direction are given by the degeneracy of each level is . The lowest level is completely filled and the others are empty. The Fermi energy , where, N is the total number of electrons, is – (December)

Choices

Choice (4) Response

a.

Coincident with the level

b.

Midway between the and the levels

c.

Midway between the and the levels

d.

Coincident with the level

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