CSIR Physical Sciences: Questions 139 - 141 of 401

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Question number: 139

» Quantum Mechanics » Eigenvalue Problems

Appeared in Year: 2014

MCQ▾

Question

A particle of mass m in three dimensions is in the potential Equation . Its ground state energy is - (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 140

» Quantum Mechanics » Eigenvalue Problems

Appeared in Year: 2012

MCQ▾

Question

A particle of mass m is in a cubic box of size Equation . The potential inside the box Equation is zero and infinite outside. If the particle is in an eigenstate of energy Equation its wavelength is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 141

» Condensed Matter Physics » Band Theory of Solids » Metals

Appeared in Year: 2012

MCQ▾

Question

The experimentally measured transmission spectra of metal, insulator and semiconductor thin films are shows in the figure. It can be inferred that I, II and III correspond respectively, to – (June)

 Plot of Transmission spectra v/s Wavelength

Plot of Transmission Spectra v/s Wavelength

In figure graph of experimentally measured transmission spectra of metal, insulator and semiconductor thin films are shown.

Choices

Choice (4) Response

a.

Semiconductor, metal and insulator

b.

Insulator, semiconductor and metal

c.

Metal, semiconductor and insulator

d.

Insulator, metal and semiconductor

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