Question

Carbon, silicon and germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by $\left(E_g\right)_{{C}},\left(E_g\right)_{{Si}}$ and $\left(E_g\right)_{{Ge}}$, respectively. Which one of the following relationship is true in their case?

Accepted Answer

$\left(E_g\right)_{{C}}>\left(E_g\right)_{{Si}}$

Answer

$\left(E_g\right)_{{C}}=\left(E_g\right)_{{Si}}$

Answer

$\left(E_g\right)_{{C}} < \left(E_g\right)_{{Ce}}$

Answer

$\left(E_g\right)_{{C}} < \left(E_g\right)_{{Si}}$

JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES

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