Topic: Electronic Devices
The band gap of elements arranged in ascending order is
- A. Diamond, Ge, Si
- B. Si, Ge, Diamond
- C. Ge, Si, Diamond
- D. Diamond, Si, Ge
Answer: C. Ge, Si, Diamond
Explanation: Band gap of elements at 300 K: $Si \rightarrow 1.1~eV$, $Ge \rightarrow 0.67~eV$, Diamond (C) $\rightarrow 5.5~eV$. The ascending order is Ge, Si, Diamond.