Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-diagram based-Medium-Class 12
Consider a diagram showing a p-type semiconductor with an acceptor energy level (E_A) slightly above the valence band (E_V). What happens to the electron concentration in the valence band when a small amount of energy is supplied?
A
Electrons jump to the acceptor level, increasing hole concentration.
B
Electrons jump to the conduction band, decreasing hole concentration.
C
Electrons recombine with holes, reducing the acceptor ionization.
D
Electrons remain in the valence band, maintaining hole concentration.
Correct Answer
Option A
Detailed Explanation
When a small amount of energy is supplied, electrons in the valence band jump to the acceptor level (E_A), ionizing the acceptor and increasing the hole concentration in the valence band.
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