MHT CET Physics question

Not in JEE Advanced syllabus

In p-n junction diode, holes diffuse from p-region to n-region because

(A)The free electrons in the n-region attract them
(B)They are swept across the junction by potential difference
(C)There is a greater concentration of holes in p-region as compared to n- regionCorrect
(D)There is great concentration of electrons in p-region as compared to n-region

Answer: (C)

Solution

Diffusion is due to a concentration gradient: holes are plentiful in the p-region and few in the n-region, so they diffuse towards

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Question ID VK-085467