CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 127 - 130 of 696

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Question 127

Appeared in Year: 2012

Question MCQ▾

A binary star system consists of two stars S1 and S2, with masses m and 2m respectively separated by a distance r. If both S1 and S2 individually follow circular orbits around the centre of mass with instantaneous speed and respectively, the speed ratio is – (December)

Choices

Choice (4)Response

a.

1

b.

0

c.

2

d.

Edit

Question 128

Appeared in Year: 2012

Question MCQ▾

The unit normal vector at the point,

On the surface of the ellipsoid

is – (December)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 129

Appeared in Year: 2014

Question MCQ▾

Which of the graphs below gives the correct qualitative behavior of the energy density of black body radiation of wavelength at two temperature and ? (June)

Choices

Choice (4)Response

a.

Energy Density as a Function of Wavelength: Choice A

b.

Energy Density as a Function of Wavelength: Choice B

c.

Energy Density as a Function of Wavelength: Choice C

d.

Energy Density as a Function of Wavelength: Choice D

Edit

Question 130

Appeared in Year: 2014

Question MCQ▾

Suppose Hamiltonian of a conservative system in classical mechanics is ; where is a constant and and are the position and momentum respectively. The corresponding Hamiltonian in quantum mechanics, in the coordinate representation, is – (December)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit