Question # 1

Nanoscience can be studied with the help of

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Quantum mechanics

Newtonain mechanics

Macro dynamics

Grophysics

1 nanometre =___________ cm

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10^-9

10^-8

10^-7

10^-6

In radial direction the thermal conductivity of a nano tube is ______ watt/(m.k)

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3500

385

0

350

20 micron =____________________ nm

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20 x10^-9

20000

200

20x10⁹

Nano technology in other words is.

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Carbon engineering

Atomic engineering

Small technology

Microphysics

When fullerencs were discovered they were thought to be

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First example of spherical aromatic molecule

First example of spherical non aromatic molecule

First example of diamond lime molecule

None of the above

The hardest material found in nature is

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Steel

Topaz

Diamond

Quartz

Length of semiconductor nanorods are in the range of.

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1.50 nm

1-50 micro meter

100-500 nm

50-100 nm

The thermal conductivity of an SWNT along length is _____ watt/(m.k)

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35

330

386

3500

Who coined the word nanotechnology.

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Eric Drexler

Richard Feynamann

Sumio tijma

Richard smalley

1 meter = ___________ nm

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10⁹

10^-9

10¹⁰

10^-10

Opticla tweezers

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Are used to remove facial hair with miniaturized laser beams

use light to manipulate particles as small as single atom

Are a nanotechnology bases tool for stamp collectors

Don't exist

The diameter of a bucky ball is about _____________

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o

1 A

1 nm

o

100 A

10 nm

The ration of thermal conductivity of silver to that of a carbon nanotube is.

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100 : 1

1 :100

10:1

1:10

Formation of nano particles involves process lime

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Foramtion of metal nuclei on different sizes.

Interaction among the formed particles

Both A and B

No interaction among the nano particles synthesized

The diameter of hydrogen atom is.______________nm

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10

1

0.1

0.01

What is abuckyball

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A carbon molecule

Nickname for Mercedes -Benz's futuristic concept car (CIII)

Plastic explosives nanoparticle (C4)

Concrete nanoparticle with a compressive strength of 20 nanonewtons(C20)

Which of the following does not apply to nanotechnology.

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It is a general purpose technology

It can be called Green technology

Newtonian mechanics can describe it.

It involves rearrangement of atoms

The suffix '-ene' in the name of fullerene shows the presence of ___ in the molecule.

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One triple bond

One double bond

Two single bonds

Two triple bonds

The most important problem regarding nano chemistry

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Elucidation of relationship between also and chemical reactivity of particle

Determination of size of particle

Determination of reactivity of particle

Determination of physical properties of nano particles.

When a large block of silicon wafer is reduced to smaller component and hence non material is formed this approach is called.

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