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Wave Optics

Question
CBSEENPH12040183

 In forward biased if the p-n junctions diode is forward biased, then width of potential barrier in p-n junction diode

  • remains constant

  • increase

  • decrease

  • None of these

Solution

C.

decrease

In forward bias the terminal of the same polarities are connected between the diode and the supply. Hence by repulsion excess number of holes or electron come out and width of potential barrier can be decreased.