KCET · Physics · Semiconductors
The forbidden energy gap for Ge crystal at \(0 \mathrm{~K}\) is
- A \(0.71 \mathrm{eV}\)
- B \(2.57 \mathrm{eV}\)
- C \(6.57 \mathrm{eV}\)
- D \(0.071 \mathrm{eV}\)
Answer & Solution
Correct Answer
(C) \(6.57 \mathrm{eV}\)
Step-by-step Solution
Detailed explanation
Ge is a semiconductor material which behaves as an insulator at \(0 \mathrm{~K}\). We know that, forbidden energy gap of an insulator is more than \(3 \mathrm{eV}\). Hence, among the given options, option (c) is correct.
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