Physics-(general)
NEET Physics (general) Assertion Reason Question
Type: Assertion Reason-assertion-Easy-Class 12
Assertion (A): At absolute zero, the valence band in a semiconductor is completely filled. | Reason (R): The conduction band is completely empty at absolute zero in semiconductors.
A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
At absolute zero, all 4N valence electrons fill the valence band, leaving the conduction band empty, as described in Chunk 1.
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