Question # 1

The temperature of a black dull surface on heating :

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Rise Rapidly

Fall Rapidly

Becomes zero

Remain constant

Which parameter remain same every where?

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Force

Mass

Weight

Velocity

Cream separater works on:

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Centrifuge principle

Centripetal force

Both

None

Evaporation takes place from liquid :

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Everywhere

Above surface only

Below surface only

Middle of liquid

Rate of doing work is called

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Energy

Torque

Power

Momentum

Mercury is used as thermometric material because it has

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Uniform thermal expansion

Low freezing point

Small heat capacity

All the above properties

Example of bad conductor is:

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Wool

Iron

Graphite

Gold

States of equilibrium are:

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2

3

4

5

The orbital speed of a low orbit satellite is

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Zero

8 ms-1

800 ms-1

8000 ms-1

Co-efficient of friction between glass and glass.

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1.0

0.9

1

0.8

The fastest bird falcon has speed.

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100 kmh^-1

200 kmh^-1

300 kmh^-1

400 kmh^-1

The boiling point of mercury is:

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-10 ^oC

150^oC

375^oC

457^oC

Melting point is also known as:

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Moiling point

Freezing point

Fusion point

None of these

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