Question # 1

The temperature at which a solid start melting is:

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Freezing point

Melting point

Fusion point

Both B and C

The formula of heat capacity is:

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mc

mc𝜟𝜽

mc𝜟Q/𝜟T

None of these

Kgms^-2 is equal to:

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Joule

Mole

Newton

Watt

Hydro meter is used to measure:

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Pressure

Density

Area

Volume

In Einstein's mass-energy equation c means speed of light. Its value is:

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3 x 10^-8 ms^-1

3 x 10⁸ms^-1

3 x 10⁹ms^-1

3 x 10¹⁸ms^-1

The rate at which various surface absorb heat depends upon:

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Nature of surface

Nature of liquid

Radiation

Emission & absorption

Friction is due to

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Roughness

Shape

Smoothness

None

Such state of matter which has no specific shape is called:

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Solid

Liquid, Gas

Gas

Solid and plasma

Process by which liquids changes into vapors is ............... .

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Vaporization

Evaporation

Boiling

None of above

Glass and transparent polythene sheets allow radiations of wavelength to pass through them:

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Long

Medium

Short

All

S.I unit of G is:

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Nm^-2 kg²

Nm^-2Kg^-2

Nm²kg^-2

Nm²kg^-3

Leslie's cube is filled with:

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Cold water

Hot water

Mercury

Air

Forces on doubled arm spanner are called.

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Torque

Couple

Moment of force

Momentum arm

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