MHT CET Physics question

Not in JEE Advanced syllabus

If the energy gap between the conduction band and valence band of a substance is of the order of 0.7 eV, then the substance is

Answer: (B)

Solution

A gap of about 0.7 eV (like germanium) is small but non-zero, which is the case for a semiconductor; a conductor has no gap,

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Question ID VK-084987