In a p-type semiconductor, the acceptor valence band is
In a semiconductor , the energy gap between valence band and conduction band is about
Which of the following statements are true about metals ?
(a) Valence band overlaps with conduction band
(b) The gap between valence band and conduction band is negligible
(c) The gap between valence band and conduction band connot be determined
(d) Valence band may remain partially filled