Physics
Man perceives sound vibrations in the frequency ranges of

6 – 10 Hz
11 – 20 Hz
20 – 20000 Hz
0 – 5 Hz

ANSWER DOWNLOAD EXAMIANS APP

Physics
In a conductor

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

ANSWER DOWNLOAD EXAMIANS APP