$A$ photocell is a device that:

Which phenomena can be explained by using the particle nature of light?

In a photoelectric experiment,if the intensity of incident light is doubled and the frequency is kept slightly greater than threshold frequency,then the saturation photoelectric current

Threshold frequency of which of the following metals does not lie in the ultraviolet region (in the case of the photoelectric effect)?

The following graph represents the variation of photocurrent with anode potential for a metal surface. Here $I_{1}, I_{2}$ and $I_{3}$ represent intensities and $\gamma_{1}, \gamma_{2}, \gamma_{3}$ represent frequencies for curves $1, 2$ and $3$ respectively,then

Explain the effect of potential on photoelectric current in the experiment of the photoelectric effect.