Q 12-14-135JEE MainJEE Main 2021 (24 Feb, Shift 2)Easy
Zener breakdown occurs in a $p$-$n$ junction having $p$ and $n$ both:
Answer: (D) heavily doped and have narrow depletion layer.
Zener breakdown needs a very strong field across the junction, which occurs when both sides are heavily doped so that the depletion layer is very narrow.
Solution by Sreeraj P, M.Sc Physics