Physics
In the process of magnetisation of a bar

Only some parts of the outer layers of the bar get magnetised
The entire bulk of the bar gets magnetised
Only the ends of the bar get magnetised
Only the surface of the bar gets magnetised

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Physics
Absolute Zero is defined as

At which liquid Helium boils
At which the volume becomes zero
The temperature at which all molecular motion ceases
At which water boils at 298K

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Physics
In a conductor

The valence band and the conduction band overlap each other
There is no conduction band
The forbidden energy gap is very narrow
The forbidden energy gap is very wide

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