MHT CET Physics question

Not in JEE Advanced syllabus

Among the substance maintained below, the semiconductor are (list: 1) copper, 2) carbon, 3) silicon, 4) Germanium 5) Gallium:

Answer: (C)

Solution

Taking carbon, silicon and germanium (group 14 elements) as the semiconducting elements, the set is 2, 3, 4;

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Question ID VK-085106