COMEDK · Physics · 30. Semiconductors
Diamond is considered as an insulator because
- A Diamond has very large forbidden energy gap.
- B Refractive index of diamond is very low
- C In the diamond the carbon atoms are held by weak covalent bonds
- D Valance band and conduction band of diamond are overlapping
Answer & Solution
Correct Answer
(A) Diamond has very large forbidden energy gap.
Step-by-step Solution
Detailed explanation
Diamond is an allotrope of carbon where each carbon atom is sp\(^{3}\) hybridized and forms four strong covalent bonds with neighboring carbon atoms. This structure results in a rigid, three-dimensional network. In terms of band theory, the valence electrons are tightly bound in…
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