CSIR Physical Sciences: Questions 206 - 209 of 389

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 389 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 206

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

Appeared in Year: 2011

MCQ▾

Question

The equation of the plane that is tangent to the surface xyz=8 at the point (1, 2,4) is – (December)

Choices

Choice (4) Response
a.

x+2y+4z=12

b.

4x+2y+z=12

c.

x+4y+2z=12

d.

x+y+z=7

Question number: 207

» Quantum Mechanics » Spin-Statistics Connection

Appeared in Year: 2014

MCQ▾

Question

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

Choices

Choice (4) Response
a.

32a2

b.

12a2

c.

2a2

d.

a2

Question number: 208

» Electromagnetic Theory » Reflection and Refraction

Appeared in Year: 2011

MCQ▾

Question

Circularly polarized light with intensity I0 is incident normally on a glass prism as shown in the figure. The index of refraction of glass is 1.5 . 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
a.

0.92I0

b.

I0

c.

0.96I0

d.

0.88I0

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 CV=γT3 , where γ 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.

γT44

b.

4γT4

c.

2γT4

d.

γT4

Sign In