1
CBSE 12th Physics Outside Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0

Pieces of copper and of silicon are initially at room temperature. Both are heated to temperature T. The conductivity of

A
both increases.
B
both decreases.
C
copper increases and silicon decreases.
D
copper decreases and silicon increases.
2
CBSE 12th Physics Outside Delhi Set 1 - 2023
MCQ (Single Correct Answer)
+1
-0

The formation of depletion region in a $$p$$-$$n$$ junction diode is due to

A
movement of dopant atoms
B
diffusion of both electrons and holes
C
drift of electrons only
D
drift of holes only
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