Question # 1

A body is moving through a viscous medium eventually comes to rest because of:

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Force of gravity

Force of friction

Its weight

Both A and C

During the nuclear changes, the law/s of conservation that hold/s are that of:

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Charge

energy

Momentum

Mass

All of these

Which of the following does not obey ohm's law?

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Copper

Al

Diode

None

A unit cell is smallest basic structure which is:

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One dimensional

Two dimensional

Three dimensional

Four dimensional

None of these

Current provided by a battery is maximum when

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Internal resistance equal to external resistance

Internal resistance is greater than external resistance

Internal resistance is less then external resistance

None of these

If the distance between two charges is doubled, the force between them will become:

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Double

Half

Three times

One fourth

One third

Bernoulli's equation is based upon law of conversation

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Mass

Momentum

Energy

None of these

Micheal Faraday and joseph Henry belong respectively to:

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USA and England

England and France

England and USA

USA and France

None of these

Crystal of germanium or silicon in its pure form at absolute zero acts as:

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A conductor

A semiconductor

an insulator

Both (A) and (C)

Both (A) and (B)

Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:

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100 N

70 N

20 N

Zero

The force acting on a charge moving in a magnetic field

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is perpendicular to the both magnetic field and direction of motion

is proportional to the magnetic of charges

vanishes when the motion is directly opposite to the direction of field

all of the above

For the conversion of heat into work, the two bodies are essential as temperature which is

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Similar

Very little difference

Large difference

None of these

When an electric field is strong the lines are

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Farther

Closer

Parallel

All of them

At high speed and for long trajectories the air friction is

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Negligible

Equal to gravity

More than gravity

None of these

At 0k whihc of the following properties of a gas wiil be zero?

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Kinetic energy

Potential Energy

Vibrational Energy

Density

The internal energy of a gram mole of an ideal gas depends upon

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Pressure alone

Volume alone

Temperature alone

Both pressure and temperature

Motion of a paratrooper is an example of

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motion

rest

static equilibrium

dynamic equilibrium

A line which represents the direction of travel of a wave is known as

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Wave front

Locus

Ray of light

Either b and c

If S is the stress and Y is Young's modulus of the material of a wire, the energy stored in the wire per unit volume is

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2 S²Y

S²/2Y

2Y/S²

S/2Y

A wire is bent into a ring of radius it is given a charge q,The magnitude of the electrical field at the centre of the ring is

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Two

1/2

Zero

3/2

The weight of 100 kg man in an elevator going up with an acceleration of 4ms^-2will be

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908 N

490 N

100 N

1380 N

A body moving with uniform velocity has

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positive acceleration

negative acceleration

infinite acceleration

zero acceleration

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