Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-conceptual-Easy-Class 12
Which of the following statements about p-n junctions is correct?
A
Holes diffuse from the p-region to the n-region due to higher concentration in the p-region.
B
Free electrons in the n-region repel holes from the p-region.
C
The potential difference across a p-n junction causes holes to move from n-region to p-region.
D
Holes can freely cross from the n-region to the p-region under reverse bias.
Correct Answer
Option A
Detailed Explanation
In an unbiased p-n junction, holes diffuse from the p-region to the n-region because the hole concentration in the p-region is greater than that in the n-region, as stated in the NCERT context.
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