Which one of the following graphs in figure shows the variation of photoelectric current `(I)` with voltage `(V)` between the electrodes in a photoelectric cell?

Variation of photoelectric current with anode potential

Why Cs and K are used as electrodes in photoelectric cells ?

Which one of the following graphs represents the variation of maximum kinetic energy (E_K) of the emitted electrons with frequency u in photoelectric effect correctly ?

Which one of the following graphs represents the variation of maximum kinetic energy (E_(K)) of the emitted electrons with frequency upsilon in photoelectric effect correctly?

The following graph shows the variation of photoelectric current for a photosensitive metal . Identify the variable X on the horizontal line.

Which among the following graphs explains the photoelectric effect?

Variation of photoelectric current with intensity of light is shown by graph…….

Which one of the following alkali metals is used in photoelectric cells ?

Why caesium and potassium are used as electrodes in photoelectric cells ?