CBSE 2022 · Region 4 · Set 1 · Q1 · 2 marks
What is meant by energy band gap in a solid? Draw the energy band diagrams for a conductor, an insulator and a semiconductor.
Marking-scheme solution
The gap between the top of the valence band and bottom of the conduction band is called the energy band gap.
ENERGY BAND DIAGRAM FOR INSULATOR
ENERGY BAND DIAGRAM FOR CONDUCTOR
ENERGY BAND DIAGRAM FOR SEMICONDUCTOR
ENERGY BAND DIAGRAM FOR INSULATORENERGY BAND DIAGRAM FOR CONDUCTORENERGY BAND DIAGRAM FOR SEMICONDUCTORSemiconductor Electronics: Materials, Devices and Simple CircuitsClassification of Metals, Conductors and SemiconductorsUnderstandvery_short_answermedium
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CBSE Class 12 Physics past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.