MHT CET 2023 Physics question

Not in JEE Advanced syllabus

In insulators

(A)valence band is empty and conduction band is filled with electrons
(B)conduction band is empty and valance band is completely filled with electronsCorrect
(C)valance band is partially filled
(D)conduction band is partially filled with electros

Answer: (B)

Solution

In an insulator the energy gap between the valence band and the conduction band is large ( eV). At ordinary temperatures electrons cannot cross the gap, so the valence band is completely filled and

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Question ID VK-095292