In the working of photodiode, the reverse current depends on
In the working of photodiode, the reverse current depends on
concentration of majority carriers.
concentration of minority carriers.
applied voltage.
recombination of holes and electrons.
Solution
The reverse current in a photodiode depends significantly on the concentration of minority carriers (electrons in the p-region and holes in the $n$-region). When light strikes the photodiode, it generates electron-hole pairs, and these minority carriers contribute to the reverse current when they are swept across the junction by the electric field.