Question # 1

Plasma is .......... state of matter .

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Molecular

Fourth

Smallest

Nil

In houses, good thermal insulation means _____________ consumption of fuel:

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Lower

Higher

Normal

None

_____________ is centre from which its mass is equally distributed:

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Cebtre of mass

Centre of gravity

All of above

None

Weight is measured by:

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Spring balnce

Measuring cylinder

Physical balnce

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

Which of the substance is lightest one?

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Copper

Aluminium

Mercury

Lead

Anticlockwise torque is taken:

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Negative

Neutral

Positive

Nil

On Celsius scale, temperature 300 K will be:

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26°C

25°C

24°C

27°C

In which of the following state molecules do not leave their position:

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Solid

Liquid

Gas

Plasma

The centre of gravity of uniform triangle is:

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Point of intersection of medians

On its vertex

On middle point of its axis

Point of intersection of diagonal

SI unit of temperature is.

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Fahrenheit

Centigrade

Kelvin

All of these

Stretched how has type of energy:

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K.E

mgh

P.E

Elastic P.E

What is the effect of lubricicantion?

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Increase friction

No effect

Reduce friction

None

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