Question # 1

Which of the substance is heaviest?

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Copper

Mercury

Aluminum

Lead

Convection of heat is a process of heat transfer due to;

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Random motion of molecules

Downward motion of molecules

Upward motion of molecules

Free motion of molecules

Walking on earth is the example of which law?

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First law

Second law

Third law

Law of momentum

Cos 0°=

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0.5

1

0.866

0

The energy possessed by a body due to height is called:

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P.E

K.E

Both

None

The formula of pressur is:

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Fx a

A/F

F/A

None of these

The range of clinical thermometer is:

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90 ^oC - 106^oC

35^oC - 42^oC

100^oC - 132^oC

24^oC - 35^oC

The unit of velocity and speed is.

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ms

ms^-2

ms^-1

ms-3

The average speed of cheetah is.

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60 kmh^-1

70 kmh^-1

75 kmh^-1

80 kmh^-1

Work done is maximum when angle between force and displacement is:

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45°

0°

60°

90°

If K = 150 N/m and elasticity is 0.20 m than:

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F = 30N

F= =31N

F = 32N

F = 29N

Which of the following is the unit of momentum?

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Nm

Kg ms^-2

Ns

Ns^-1

The study of internal structur eof Earth is called.

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Atomic Physics

Plasma Physics

Geo physics

Nuclear Physics

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