Question # 1

According to hook's law stress is directly proportional to :

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Area

Volume

Strain

Force

The earth temperature is :

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300 K

200 k

100 K

50 K

The mathematical form of law of gravitation is:

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F = GMe m/Re2

F = Gm1m2/r2

F = GMem1/Re2r2

None

The study of motion without reference to mass and force.

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Mechanics

Dynamics

Kinematics

None of these

Rate of change of velocity is known as.

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Acceleration

Speed

Velocity

Distance

The energy released int he form of nuclear radiations in addition to heat and light is called:

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Mechanical energy

Gravitational energy

Chemical energy

Nuclear energy

The bad conductor of Heat is:

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Iron

Copper

Air

Aluminium

The quantity of heat absorbed by the body depends upon:

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Colour of surface

Nature of surface

Shape of surface

Both a & b

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

On hot days cold air from sea began to move towards land:

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Sea breeze

Land breeze

Both A and B

None of these

The Celsius lower reference point is 0^oC while upper reference point is:

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212 ^oC

180^oC

100^oC

110^oC

S.I unit of pressure is :

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Nm^-2

Newton

Joule

Watt

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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