Question # 1

Which of the substances is the lightest one?

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Copper

Mercury

Aluminium

Lead

Ship and boats are designed on the principal of

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Charge

Densities

Volume

Floatation

Barometer was first set up by:

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Robert

Torricelli

Al Razi

Nil

Matter has basically ___________ states.

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4

3

Both a & b

None

Unit of pressure is :

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N/ m

Pa

N

m/N2

How many times Mercury is denser than water?

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12.5

13.6

76

76.5

Minor but rapid change in atmospheric pressure cause:

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Poor condition

Intense condition

Windy condition

Pleasant condition

Such state of matter which has no specific shape is called:

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Solid

Liquid, Gas

Gas

Solid and plasma

Atmospheric pressure acts in:

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upward direction

Down ward direction

Opposite of force

All direction

S.I unit of pressure is Pascal which is equal to?

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10 Nm^-2

1 Nm^-2

10² Nm^-2

10³ Nm^-2

Plasma is in ___________ form.

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Moleculer

Kinetic

Static

Ionized

The unit of density is:

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kg^-1 m^-3

kg m^-1

kgm^-3

kgm^-2

Atmospheric pressure is measured by an instrument called:

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Barometer

Altimeter

Meter rod

Hydrometer

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