In semiconductors at a room temperature (a) the valence band is partially empty and the conduction band is partially filled (b) the valence band is completely filled and the conduction band is partially filled (c) the valence band is completely filled (d) the conduction band is completely empty

Answer: (a). At room temperature some electrons cross the small gap of a semiconductor. Valence band becomes partially empty (holes) and conduction band partially filled. So the answer is (a).

In semiconductors at a room temperature | NEET 2004 (AIPMT)

Q22NEET 2004 · AIPMTEasy

Energy Bands in Solids

In semiconductors at a room temperature

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Answer: (a)

At room temperature some electrons cross the small gap of a semiconductor.
Valence band becomes partially empty (holes) and conduction band partially filled.
So the answer is (a).

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