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

ANSWER DOWNLOAD EXAMIANS APP

Physics
The sky appears blue because

In white light, the blue component dominates
The atmosphere scatters blue colour more than the others
It is actually blue
All colours interfere to produce blue

ANSWER DOWNLOAD EXAMIANS APP