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Quantum Mechanics for Nanostructures
Answers to RF Cafe Quiz #31

RF Engineering Quizzes - RF Cafe WebsiteAll RF Cafe Quizzes make great fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job. Bonne chance, Viel Glück, がんばろう, buena suerte, удачи, in bocca al lupo, 행운을 빕니다, ádh mór, בהצלחה, lykke til, 祝你好運. Well, you know what I mean: Good luck!

Click here for the complete list of RF Cafe Quizzes.

Note: Some material based on books have quoted passages.

Return to RF Cafe Quiz #31

RF Cafe Featured Book - Quantum Mechanics for NanostructuresThis quiz is based on the information presented in the book, "Quantum Mechanics for Nanostructures," by Vladimir V. Mitin, Dmitry I. Sementsov, Nizami Z. Vagidov.

Published by Cambridge University Press.

 

1.  When was the notion of "nanotechnology" introduced?

c)  1959

The notion of "nanotechnology" was introduced for the first time by Richard Feynman in 1959 in his famous Caltech lecture "There's plenty of room at the bottom: an invitation to enter a new field of physics." (see page 2)

 

2.  What determines whether a material is a nanostructure?

a)  At least one dimension less than 100 nm

The prefix "nano" means one billionth part of something. Therefore, from the formal point of view nanostructures can be any objects with size (at least in one of the directions) of the order of 100 nm or less. (see page 4)

 

3.  What is graphene?

b)  A 2-D layer lattice of carbon atoms

Graphene is a two-dimensional crystal, which consists of a single layer of carbon atoms in a hexagonal lattice. (see page 15)

 

4.  When was graphene first produced?

d)  2004

Although graphene had been know of for a long time, researchers managed to obtain single graphite layers and study them only in 2004. It was done using ordinary Scotch tape. (see page 15)

 

5.  What is the fundamental usefulness of the Schrödinger equation?

a)  It is used to calculate the wavefunction of a system

The main equation of non-relativistic quantum mechanics is known as the Schrödinger equation. It allows us to find the wavefunction of a particle or or a system of particles in a stationary state as well as its evolution in time. (see page 56)

 

6.  What is quantum tunneling?

d)  Propagation of an electron in the region of a potential barrier

(see page 89)

 

7.  Spin refers to which property of an electron?

a)  Angular momentum

Electron spin describes the momentum of an electron due to its intrinsic mass and it rotation about its axis. (see page 169)

RF Cafe - Carbon nanotube model (from Wikipedia)8.  What does the image to the right represent?

c)  A carbon nanotube (image from Wikipedia)

Carbon nanotubes are constructed from sheets of graphene rolled into hollow cylinders. (see page 267)

 

9.  What is the basis of a "single electron" device?

c)  Devices based on the effect of tunneling of a single electron

(see page 285)

 

10.  In classical physics, what does a particle's total mechanical energy consist of?

a)  Kinetic energy + potential energy

The total mechanical energy of a particle is defined as the sum of its protential energy and kinetic energy (see page 318)

Quizzes from vintage electronics magazines such as Popular Electronics, Electronics-World, QST, Radio-Electronics, and Radio News were published over the years - some really simple and others not so simple. Robert P. Balin created most of the quizzes for Popular Electronics. This is a listing of all I have posted thus far.

RF Cafe Quizzes

Vintage Electronics Magazine Quizzes

Vintage Electronics Magazine Quizzes
KR Electronics (RF Filters) - RF Cafe Website

About the RF Cafe™ Website ©1996-2026

Kirt Blattenberger - RF Cafe WebmasterRF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...

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