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Which of the followin is correct regardi...

Which of the followin is correct regarding band theroy of solids?

A

The energy bands which are completely filled at `0 K` are called valence bands. The bands with higher energies are called conduction bands

B

The difference between the highest energy in a band and the lowest energy in the next higher band is called band gap between the two bands

C

Band gap for `Si(1.1 eV), Ge(0.7 eV)`, for insulators (about `5 eV)`

D

All option are correct

Text Solution

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The correct Answer is:
D
NA
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