Question Detail

In reverse bias, the barrier potential increases. However, the statement says 'barrier potential increases' - this is actually true. Wait, the question asks 'Which is not true?' Option D says 'barrier potential increases in reverse biased p-n junction diode.' That is true. But the answer key says D. Let me re-read: The answer key says ANSWER (d) barrier potential increases in reverse biased p-n junction diode. So it seems option D is false? Actually, in reverse bias, the barrier potential does increase. So this is true. The only false statement might be A, but the answer key says D. Possibly the question is mis-stated.