The diameter of human hair is
75m
75000
21 practice sets · Page 1 of 2
The diameter of human hair is
75m
75000
The size of a quantum dot is
5m
Nano technology is also referred as
carbon engineering
atomic engineering
small technology
microphysics
Optical tweezers
are used to remove facial hair with miniaturized laser beams
use light to manipulate particles as small as a single atom
are a nanotechnology based tool for stamp collections
does not exist
Which one of the following statement is not correct?
Silicon at the nano scale is insulator
Gold at the nano scale is red
Aluminum at the nano scale is highly combustible
Copper at the nano scale is transparent
Which of these historical works of art contain nono technology
Lycusgus cup
Medieval stained glass windows in churches
Damascus steel swords
All of the above
What is grapheme
a new material made from carbon nanotubes
thin flim made from fullerenes
a software tool made to measure and graphically represent nano particles
a one atom thick sheet of carbon
The tensile strength of a carbon nanotube is………………….times that of steel.
25
50
100
200
Who first used the term nano technology and when
Rechard Feynman, 1959
Nario, Taniguchi, 1974
Eric Drexier, 1986
Sumio Lijima, 1991
Which one of this condiments is unique due to the nanoscale interactions between its ingredients?
Ketchup
Mustard
Mayonnaise
All of the above
There is a plenty of room at the bottom. The statement was given by
Richard Feynman
Issac Newton
Albert Einstein
Eric Drexler
The width of carbon nanotube is
1nm
1.3nm
1.55nm
2nm
The size of red and white bold cells is in the range of
2 to 5 micro meters
5 to 7 micro meters
7 to 10 micro meters
10 to 15 micro meters
The prefix nano comes from a
French word meaning billion
Greek word meaning dwarf
Spanish word meaning particle
Latin word meaning invisible
The most important property of nano materials is
force
pressure
temperature
friction
The diameter of the fly ash particle is
5 to 10 mioco meter
10 to 20 mioco meter
20 to 30 mioco meter
30 to 40 mioco meter
The cutoff limit of human eye to see is
10nm
100 nm
1000 nm
10000 nm
Nanorobots (nanobots)
do not exist
exist in experimental forms in laboratories
are ready used in nanomedicine to remove plaque from the walls of arteries
will be used by NASA in the next unmanned mission to the space
How many oxygen atoms lined up in a row would fit in a one nonometer space?
1
7
70
None. An oxygen atom is bigger than 1nm
20 micron is
200
20000