In a photoelectric experiment, the frequency and intensity of a light source are both doubled. Then consider the following statements. 

(i) The saturation photocurrent remains almost the same. 

(ii) The maximum kinetic energy of the photoelectrons is doubled. 

A point sources of light is used in a photoelectric effect. If the sources is removed farther from the emitting metal, the stopping potential 

A point source causes photoelectric effect from a small metal plate. Which of the following curves may represent the saturation photocurrent as a function of the distance between the source and the metal?

The stopping potential as a function of frequency of incident radiation is plotted for two different photo electric surfaces $A$ and $B.$ The graphs show the work function of $A$ is

Light of wavelength $5000 \stackrel{\circ }{\mathrm{A}}$ falls on a sensitive plate with photoelectric work function of $1.9\mathrm{eV}$. The kinetic energy of the photoelectron emitted will be