Question # 1

The Earth is surrounded by a cover of air called

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Atmosphere

Solid

Environment

Surroundings

As we go up the density of air in the atmosphere:

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Decreases

Increases

Remain constnat

None of these

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

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0.3 m

1 m

2.5 m

11 m

Einstein mass energy equation is:

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E = mc

E = m2 c

E = mc2

E2 = mc

As we go up the value of atmospheric pressure is

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Decreased

Increased

Remain constnat

None of these

Which of the substances is the lightest one?

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Copper

Mercury

Aluminium

Lead

Highly conducting state of matter is:

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Solid

Liquid

Gas

Plasma

The force exerted perpendicularly on unit of area of an object is called:& nbsp

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strain

young's modulus

pressure

buoyant force

A gradual large increase in atmospheric pressure shows:

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Pleasant condition

Rainy condition

Intense condition

Winday condition

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

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

Hydraulic press is a machine which works on

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Hook's law

Archimedes principle

Pascal's law

Boyle's law

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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