Physics
Full form of CFL used in place of electric bulbs is

Compact fluorescent lamp
Closed filament lamp
Closed fluorescent lamp
Constantan filament lamp

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Physics
In the process of magnetisation of a bar

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

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