Question # 1

The velocity of freely falling bbodies moving upward.

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Decreases

Increases

Constnat

zero

Heat form one of a metal rod a reaches to the other by the process of

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convection

radiation

conduction

both (a) and (b)

A body is in equilibrium when its

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Acceleration is uniform

Speed is uniform

Speed and acceleration are uniform

Acceleration is zero

Least count of digital stop watch is.

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0.01 sec

0.1 sec

1 sec

10 sec

1000 liters is equal to:

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100 m³

1 m³

1 cm³

1 mm³

Those objects that conduct electricity are:

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Conductors

Insulators

Semi conductOrs

None of these

Leslie's cube is filled with:

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Cold water

Hot water

Mercury

Air

Metals are good conductor of heat due to:

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Free electrons

Reamain same

Small size of their molecules

Rapid vibration of their atoms

Unit of moment arm (L) is:

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Meter

Mole

Newton

Nm

Which of the following is the unit of momentum?

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Nm

kgms^-2

Ns

Ns^-1

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

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Area

Volume

Strain

Force

The centripetal acceleration is always along.

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Normal force

Centripetal forces

Mass

Horizental forces

Formula of Gravitational potential energy is:

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mgh

mg/h

1/2 mv²

None of these

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