Question

v) n(E) versus E curve gives
in energy band.
(a) total number of electrons
(b) total number of energy states
(c) total number of MOs
(d) total number of AOs​

Answer 1

In energy band, n(E) verses E curve gives (a)total number of electrons

Explanation:

1.The band gap is the minimum amount of energy required for an electron to break free of its bound state. When the band gap energy is met, the electron is excited into a free state, and can therefore participate in conduction.

2.In solid-state physics of semiconductors, a band diagram is a diagram plotting various key electron energy levels (Fermi level and nearby energy band edges) as a function of some spatial dimension, which is often denoted x.

Answer 2

Answer:

The n(E) versus E curve gives the total number of electrons in the energy band. i.e.option(a).

Explanation:

• The energy band is the difference in the energy level of the valence band and conduction band.
• Electrons jump from the valence band to the conduction band.
• If we plot the graph between n(E) and E. Where n(E) will be on the y-axis and E will be on the x-axis. So,

                             $tan\theta=\frac{y}{x}$

                              $tan\theta=\frac{n(E)}{E}$       (1)

  where,

n(E)="n" number of electrons  associated with energy E

E=energy of an electron

So, equation (1) can be written as,

                                $tan\theta=n$     (2)

Hence, the n(E) versus E curve gives the total number of electrons in the energy band. i.e.option(a).