CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 321 - 323 of 463

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 463 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

Question number: 321

» Thermodynamic and Statistical Physics » Free Energy

Appeared in Year: 2012

MCQ▾

Question

The free energy difference between the superconducting and the normal states of a material is given by, Equation where Equation is an order parameter and Equation and Equation are constants such that Equation in the normal and Equation in the superconducting state, while Equation always. The minimum value of Equation is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 322

» Quantum Mechanics » Timeindependent Perturbation Theory and Applications

Appeared in Year: 2011

MCQ▾

Question

A constant perturbation as shown in the figure below acts on a particle of mass Equation confined in an infinite potential well between 0 and L.

A constant perturbation is given

A Constant Perturbation Is Given

Above figure gives a constant perturbation acts on a particle confined in an infinite potential well between 0 and L.

The first – order correction to the ground state energy of the particle is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Passage

Light of wavelength 660 nm and power of Equation is incident on a semiconductor photodiode with an absorbing layer of thickness of Equation .

Question number: 323 (1 of 2 Based on Passage) Show Passage

» Electronics and Experimental Methods » Opto-Electronic Devices » Photo-Detectors

MCQ▾

Question

The generated photo – current for a quantum efficiency of unity will be –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

f Page
Sign In