Question # 1

How many times Mercury is denser than water?

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12.5

13.6

76

76.5

Ship and boats are designed on the principal of

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Charge

Densities

Volume

Floatation

Force per unit Area is :

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Pressure

Density

Efficiency

Nil

Plasma is a gas which consists of:

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Negative ions

Positive ions

Neutral ions

All of htese

The Earth is surrounded by a cover of air called

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Atmosphere

Solid

Environment

Surroundings

Plasma exist in _______________

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Earth

Satellite

Moon

Sun

According to Archimedes, upthrust is equal to

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Weight of displaced liquid

Volume of displaced liquid

Mass of displaced liquid

None of these

Plasma is .......... state of matter .

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Molecular

Fourth

Smallest

Nil

What should be approximate length of a glass tube to construct of water barometer?

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0.5 m

1 m

2.5 m

11 m

Decrease in atmospheric pressure predicts:

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Rainy condition

Intense condition

Windy Condition

Pleasant condition

Rate of doing work is called

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Energy

Torque

Power

Momentum

As we go up the value of atmospheric pressure is

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Decreased

Increased

Remain constnat

None of these

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

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Physics 9th Class English Medium Unit 7 Online Test MCQs With Answers

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