Draw properly labelled graphs to show the following concerning photoelectric emission:
variation of photoelectrons current with the intensity of incident radiatio,

In photoelectric effect, does the photoelectric current depend on the intensity of incident radiation? Give reasons.

Draw a plot showing the variation of photoelectric current versus the intensity of incident radiation on a given photosensitive surface.

Define the term threshold frequency and stopping potential in relation to phenomenon of photoelectric effect. How is the photoelectric current affected on increasing the intensity of incident radiation and why?

In case of photoelectric effect experiment explain the following facts giving reasons: The photoelectric current increases with increase of intensity of incident light.

According to Einstein's photoelectric equation, the graph between kinetic energy of photoelectrons ejected and the frequency of the incident radiation is :

Draw a properly labelled graph between the angle of incidence and the angle of devaition for a prism and show the point of minimum deviaion.

Explain the effect of increase of intensity of incident radiation on photoelectric current with suitable graphs.

Photoelectric effect When light of sufficiently small wavelength is incident on a metal cathode, it may emit electsons called photoelectrons. This is called photoelectric effect. Above threshold frequency, the stopping potential and hence the energy of the photoelectrons is directly proportional to the frequency. In the given figure, we see the variation of stopping potential with the frquency of incident radiation for three metals A, B and C Which of these metals A, B or C are suitable for photoelectric cell?