Choose the correct statement. In semiconductors valance band and conduction band (a) is separated by large energy gap. (b) is separated by small energy gap: (c) is almost empty. (d) overlap each other.

Answer: (b). Semiconductors have a small band gap, about 1 eV (Si 1.1 eV, Ge 0.7 eV). Large gap means insulator; overlapping bands means conductor. So the answer is (b) separated by a small energy gap.

Choose the correct statement. In semiconductors valance band and… | MHT CET 2021 (22 Sep, Shift 2)

Q12MHT CET 2021 · 22 SEP · SHIFT 2Easy

Energy Bands in Solids

Choose the correct statement. In semiconductors valance band and conduction band

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Answer: (b)

Semiconductors have a small band gap, about $1\text{ eV}$ (Si $1.1\text{ eV}$ , Ge $0.7\text{ eV}$ ).
Large gap means insulator; overlapping bands means conductor.
So the answer is (b) separated by a small energy gap.

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Energy Bands in Solids question from MHT CET 2021 (22 Sep, Shift 2)

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