Using Einstein's photoelectric equation show how the cut -off voltage and threshold frequency for a given photosenstive material can be determined with the help of a suitable plot/graph.

Using Einstein's photoelectric equation show how the cut -off voltage and threshold frequency for a given photosensitive material can be determined with the help of a suitable plot/graph.

Define the terms (i) 'cut-off voltage' and (ii) threshold frequency' in relation to the phenomenon of photoelectric effect. Using Einstein's photoelectric equation show how the cut-off voltage and threshold frequency for a given photosensitive material can be determined with the help of a suitable "plot" // "graph" .

Write Einstein's photoelectrical equation in terms of the stopping potential and the threshold frequency for a given photosensitive material. Draw a plot showing the variation of stopping potential vs the frequency of incident radiation.

Establish Einstein's photoelectric equation. Discuss how it gives the concept of threshold frequency and stopping potential.

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