At absolute zero, Si acts as (a) non metal (b) metal (c) insulator (d) none of these

Answer: (c). At 0 K the valence band of Si is full and the conduction band is empty. No free carriers exist, so Si cannot conduct. So the answer is (c) insulator.

At absolute zero, Si acts as | NEET 1988 (AIPMT)

Q67NEET 1988 · AIPMTEasy

Intrinsic & Extrinsic Semiconductors

At absolute zero, Si acts as

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Answer: (c)

At $0$ K the valence band of Si is full and the conduction band is empty.
No free carriers exist, so Si cannot conduct.
So the answer is (c) insulator.

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Intrinsic & Extrinsic Semiconductors question from NEET 1988 (AIPMT)

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