CSIR Physical Sciences: Questions 298 - 300 of 401

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Question number: 298

» Quantum Mechanics » Timeindependent Perturbation Theory and Applications

Appeared in Year: 2012

MCQ▾

Question

The perturbation, Equation acts on a particle of mass Equation confined in an infinite square well potential Equation

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

(December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 299

» Electronics and Experimental Methods » Opto-Electronic Devices » Solar Cells

Appeared in Year: 2012

MCQ▾

Question

The output characteristic of a solar panel at a certain level of irradiance is shown in the figure below.

The output characteristic of solar panel

The Output Characteristic of Solar Panel

In figure the output characteristic of the solar panel at certain level of irradiance.

If the solar cell is to power a load of Equation , the power drawn by the load is –

(December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 300

» Atomic & Molecular Physics » Population Inversion

Appeared in Year: 2012

MCQ▾

Question

Consider the energy level diagram shown below, which corresponds to the molecular nitrogen laser.

 The energy level diagram

the Energy Level Diagram

In figure the energy level diagram is shown.

If the pimp rate R is Equation and the decay routes are as shown with Equation and Equation , the equilibrium populations of states 2 and 1 are respectively. (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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