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

A) ($E_{g}$)$_{C}$ > ($E_{g}$)$_{Si}$
B) ($E_{g}$)$_{C}$ = ($E_{g}$)$_{Si}$
C) ($E_{g}$)$_{C}$ < ($E_{g}$)$_{Ge}$
D) ($E_{g}$)$_{C}$ ($E_{g}$)$_{Si}$
Explanation

The correct answer is Option A: ($E_{g}$)$_{C}$ > ($E_{g}$)$_{Si}$.

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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