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Physics

Physics
As water is cooled from 4 deg C to 0 deg C, its density

Decreases
Increases
None of these
Remains same

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Physics
Tungsten is used for the manufacture of the filament of an electric bulb, because

It is malleable
It is a good conductor
It has a very high melting point
It is economical

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Physics
What is the process of conversion of solid state directly to gaseous state called?

Evaporation
Distillation
Sublimation
Condensation

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Physics
The moment of inertia of a body does not depend upon

The mass of the body
The axis of rotation of the body
The mass distribution in the body
The angular speed of the body

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Physics
A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be

A circle
A vertical straight line
A horizontal straight line
A parabola

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Physics
Which of the following is a non renewable source of energy ?

Wind
Coal
Biogas
Solar

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