Physics-(general)

NEET Physics (general) MCQ Question

Type: MCQ-diagram based-Medium-Class 12

Consider a semiconductor with a valence band and a conduction band separated by an energy gap. Which statement is true about the energy states at absolute zero?

Question diagram
A

The valence band is completely occupied while the conduction band is empty.

B

Both the valence and conduction bands are partially filled.

C

The energy gap is filled with electrons.

D

The conduction band has more electrons than the valence band.

Correct Answer

Option A

Detailed Explanation

At absolute zero, the valence band is completely filled by the 4N valence electrons, and the conduction band is empty, as described in the NCERT context.

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