Question # 1

The temperature of a black dull surface on heating :

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Rise Rapidly

Fall Rapidly

Becomes zero

Remain constant

Mathematically density is defined as

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mass/volume

force/area

volume/mass

mass/area

Breaking system in vehicles depends upon:

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Pascal's law

Hook's law

Archimedes law

Principle of floatation

Which of the following do not effect evaporation?

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Temperature

Wind

Volume

Surface area of liquid

Distance covered by freely falling downward body in first second.

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5 m

29.4 m

10 m

19.6 m

Leslie's cube is filled with

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Cold water

Hot water

Mercury

Air

Which one of the following converts light energy into electrical energy?

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Electric Bulb

Electric generator

Photocell

Electric cell

The SI unite of density is

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gcm-3

gm-3

gdm-3

kgm-3

Earth revolves around the:

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Moon

Sun

Glaxy

None

On heating Air become:

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Heavier

Lighter

Remain same

None of these

If the mass of a body is 'm' and change in its temperature isΔT, then the heat absorbed or released is given by

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ΔQ = cmΔT

ΔQ = mΔT

ΔQ = 2cΔT

ΔQ = cmΔT2

Atmospheric pressure is measured by an instrument called:

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Barometer

Altimeter

Meter rod

Hydrometer

Significant figures in 0.0010 are.

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One

Two

Three

Four

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