Question # 1

If a body does work at the rate of 1 Js^-1then its power will be:

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KW

1 MW

1 W

None of these

A body is in neutral equilibrium when its centre of gravity:

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Is at its highest position

Is at the lowest position

Keep its height if displaced

Is situated at its bottom

Which of the following is the unit of momentum?

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Nm

Kg ms^-2

Ns

Ns^-1

The unit of strain is:

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Nm^-2

Pa

Newton

None

The static fraction between wood and lather is _______________

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0.6

0.7

0.9

0.8

Parallel forces are those whose:

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^{Times of action are parallel}

Points of action are different

More than one forces

All of the given option

Which of the following is unit of momentum?

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Nm

Kgms^-2

Ns

Ns^-1

Evaporation causes:

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Melting

Boiling

Freezing

Cooling

Density is a ratio of mass to:

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Area

Volume

Length

Mass

Relation between force and momentum is:

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ΔP/F

ΔP/t

ΔPF

None

Alcohol has specific heat in Jkg^-1 K^-1 is:

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2500

4200

1000

138.6

Evaporation takes place at temperature :

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100°C only

0°C only

35°C Only

At all temperature

The energy present in our food is:

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Mechanical energy

Gravitational potential energy

Chemical energy

Nuclear energy

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