MHT CET Physics question

Not in JEE Advanced syllabus

In semiconductors, at room temperature the

(A)valence band is partially empty and the conduction band is partially filledCorrect
(B)valence band is completely filled and the conduction band is partially filled
(C)valence band is completely filled
(D)conduction band is completely empty

Answer: (A)

Solution

At room temperature thermal energy excites some electrons across the small gap, leaving the valence band partially empty

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Question ID VK-075013