If the lattice constant of this semiconductor is decreased, then which of the following is correct?

If the lattice constant of this semiconductor is decreased, then which of the following is correct?
  1. All $E_c, E_g, E_v$ decrease
  2. All F $F_{-F}$ increase
  3. $\mathrm{E}_{\mathrm{c}}$, and $\mathrm{E}_{\mathrm{v}}$ increase but $\mathrm{E}_{\mathrm{g}}$ decreases
  4. $E_c$, and $E_v$, decrease $E_g$ increases

Solution

$=(8 \times 7.06-7 \times 5.60) \mathrm{MeV}=17.28 \mathrm{MeV}$

Asked in: JEE Main 2006

Practice more Semiconductors questions on Aicharya