Which among the following having highest band gap ?

Diamond

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Silicon

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Germanium

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Gallium nitride

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Solution

The correct option is A Diamond
The energy gaps of the given materials are given:
Diamond $= 6 e V$ (insulator)
Silicon $= 1.1 e V e V$ (semiconductor)
Germanium $= 0.6 e V$ (semiconductor)
Gallium nitride $= 3.4 e V$ (semiconductor)

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Similar questions

Which of the following statements are true about metals ?

(a) Valence band overlaps with conduction band

(b) The gap between valence band and conduction band is negligible

(d) Valence band may remain partially filled

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