Explain three facts of photoelectric effect using Einstein's photoelectric equation.

Write Einstein's photoelectric equation.

what is photoelectric effect?

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" .

In photoelectric effect, the current

Write Einsteins's equation of photoelectric effect. Give Einstens explanation of photoelectric effect.

Mention any three applications of photoelectric effect.

What is photoelectric effect? Give one example.

(a) Why photoelectric effect can not be explained on the basis of wave nature of light ? Give reasons. (b) Write the basic features of photon picture of electromagnetic radiation on which Einstein's photoelectric equation is based.