Draw a graph showing the variation of stopping potential with frequency of incident radiation Mark the threshold frequency in the figure.

Einstein got Nobel prize in physics in 1921 for his explanation of photoelectric effect. Draw a graph to show the variation of stopping potential with frequency of incident radiation. How the value of Plank.s constant can be deter mined from the graph?

When photons incident on a metallic surface electric current is produced. The work function of a metal is given by [phi_0 = hc / lambda_0 = h(upsilon_0 )] ,where (lambda_0, c , h , upsilon_0) have their usual meaning The graph given below shows the variation in stopping potential with frequency upsilon of the incident radiation of the materials A and B. : Which material has higher work function?

Draw a graph showing the variation of resistivity with temperature for a semiconductor.

Using Einstein.s photoelectric equation show that photoelectric emission is not possible if the frequency of incident radiation is less than the threshold frequency

The given graph shows the variation of KE with frequency of incident radiations for two surfaces A and B. Which of the two metals has greater work function?