$A$ photocell is a device that:

The figure represents the graph of photoelectric current $I$ versus applied voltage $(V)$. The maximum kinetic energy of the emitted photoelectrons is

The time taken by a photoelectron to come out after the photon strikes is approximately

When monochromatic radiation of intensity $I$ falls on a metal surface, the number of photoelectrons and their maximum kinetic energy are $N$ and $K$ respectively. If the intensity of radiation is $2I$, the number of emitted electrons and their maximum kinetic energy are respectively

Why is photoelectric current proportional to intensity?

In a photo cell,the photo-electrons emission takes place