Question # 1

Which one of the following units is not a derived unit?

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Pascal

Kilogram

Newton

Watt

Leslie's cube is filled with:

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Cold water

Hot water

Mercury

Air

The process in which heat is transmitted form one body to another by the interaction of atoms and the movement of free electrons is known as

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convection

radiation

conduction

both (a) and (b)

___________ varies with height.

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Weight

Pressure

Mass

Energy

Fossils fuels are usually compound of:

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Carbon

Hydrogen

Carbon & Hydrogen

None of these

Which of the following affects evaporation?

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Temperature

Surface area of the liquid

Wind

All of the above

One Megawatt is equal to :

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1 × 106 w

1 × 102 kw

1015 w

Nil

The value of latent heat of vaporization of water is:

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2.26 x 10⁶ Jkg^-1

2.29 x 10⁵Jkg^-1

2.26 x 10^-6Jkg^-1

3.29 x 10^-5Jkg^-1

The value of gravitational acceleration when a body is moving in downward direction is.

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10 ms^-1

10 ms^-2

10 m

-10 ms

The static fraction between wood and lather is _______________

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0.6

0.7

0.9

0.8

S.I unit of force is:

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N

Ns

s

None

The weight of a body is 100 N its weight in deep space is :

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100 N

50 N

25 N

0 N

GPS system consists of earth satellites:

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4

20

24

30

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