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.What is forbidden zone? |
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Answer» ‘Forbidden zone' in reference to band theory of solids:-According to bond theory, forbidden zone is the energy gap between valence band and conduction band in solids.This gap is large in insulators and small in semi-conductors.There is no forbidden zone in metals, because in metals valence and conduction band overlapForbidden zone is the energy gap. It is the gap between the valence band and conduction band in the band theory. |
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