The forbidden gap in germanium crystal is

0.7 eV

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1.12 X 10^{19} J

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Both 1 and 2

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1.1 e V

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Solution

The correct option is A 0.7 eV
The energy difference between the valance and conduction band is called Forbidden energy gap $.$
The forbidden gap in germanium crystal is $0.7 e V$
Hence $,$ o[ption $(A)$ is correct $.$

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1.1 e V

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