Question # 1

1 gm-cm^-3is equal to

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10³kg-m^-3

10^-3kg-m^-3

1kg-m^-3

10⁶kg-m^-1

0.0001210 has ____________ significant figures.

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Four

Three

Seven

Eight

Significant figures in 0.0010 are

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Four

Three

Two

One

The study of physics involves?

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Structure of space and time

Interaction of electromagnetic radiation with matter

Both of them

Chemical changes

None of them

dimensions are the same for:

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Work and energy

Force and weight

None of these

Both a and b

Physics is one of the branches of:

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Social sciences

Physical sciences

Biological sciences

Abstract art

The machines which deals with the objects moving with velocities approaching that of light is called:

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Relativistic mechanics

Wave mechanics

Quantum

Statics mechanics

Dimension of mass is written as:

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M

[M]

(M)

[m]

The maximum possible error in the reading for a meter rod with least count 1 mm is:

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0.005 mm

0.05mm

0.5mm

5.0mm

Light year is a unit of:

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Time

Distance

Velocity

Intensity of light

Diameter of the atom is of the order of

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10^-10m

10^-12m

10^-15m

10^-9m

Particles have the mass smallest of following is

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Electron

Proton

Neutron

Quark

Relativistic mechanics is a branch of physics, which deal with the bodies moving with velocities:

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More then c

Approaching c

Equal to c

Much less than x

A dimension stands for the ___________ nature of certain physical quantity.

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super

Quantitative

Qualitative

Both B and C

The information from far side of the universe are gathered by

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Radio telescope

Microscope

Telescope

Spectro scpe

The body of physics involves

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Structure of space and time

Interaction of electromagnetic radiation with matter

Both of them

Chemical Changes

Silicon can be obtained from:

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Lead

Uranium

An isotope of oxygen

Sand

Which branch of physics deals with the structure and properties of solids

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Atomic Physics

Plasma Physics

Molecular Physics

Solid state physics

Examples of physical quantities are:

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Length

Color

Effect of music

All of these

The branch of physics, which deals with the structure an properties of solids is called:

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Plasma physics

Solid state physics

Any of above

Astro physics

The branch of physics which deals with the properties of fundamental particles is called:

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High energy physics

Molecular physics

Astrophysics

Space physics

Computer chips are made from

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Conductors

Semiconductors

Insulators

Both A and B

Silicon can be obtained from

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Lead

Uranium

An isotope of oxygen

Sand

Number of supplementary units are

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Three

Two

Seven

Five

Density is defined as:

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Mass per volume

Volume per mass

Mass x volume

Mass per length

Those quantities which can be measured accurately are known as

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Physical Quantities

Scalar Quantities

Vector Quantities

Non Physical Quantities

The time taken by light to travel from moon to earth is:

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80 sec

500 sec

1.802 X 10⁴sec

Aerophysics

Particles have the mass smallest of following is:

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Electron

Proton

Neutron

Quark

Density is defined as:

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Mass per volume

Volume per mass

Mass X volume

Mass per length

The definite number of significant figures in 5000 is:

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Four

Three

Two

One

Which of the following are the units of intensity of light

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Pois

Lux

Siemen

Candela

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