Condensed Matter Physics-Band Theory of Solids (CSIR (Council of Scientific & Industrial Research) Physical Sciences): Questions 1 - 2 of 2

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Question number: 1

» Condensed Matter Physics » Band Theory of Solids » Metals

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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

Choices

Choice (4)Response

a.

Metal, semiconductor and insulator

b.

Semiconductor, metal and insulator

c.

Insulator, semiconductor and metal

d.

Insulator, metal and semiconductor

Question number: 2

» Condensed Matter Physics » Band Theory of Solids » Semiconductors

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Appeared in Year: 2012

MCQ▾

Question

In a band structure calculation, the dispersion for electrons is found to be, Where is a constant and is the lattice constant. The effective mass at the boundary of the first Brillouin zone is – (December)

Choices

Choice (4)Response

a.

b.

c.

d.

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