What extraordinary assumption was made by Einstein while explaining the photo electric effect?

Write Einstein.s photo electric equation.

Photon is a quanta of light. Briefly explain the effect of intensity and energy of the incident radiation of the photo electric effect.

Albert Einstein proposed a radically new picture of electromagnetic radiation to explain photoelectric effect. Identify Einstein.s photoelectric equation?

Albert Einstein proposed a radically new picture of electromagnetic radiation to explain photoelectric effect.With the help of Einstein.s photoelectric equation explain the following fact: Kinetic energy of photoelectrons is directly proportional to frequency not on intensity.

Albert Einstein proposed a radically new picture of electromagnetic radiation to explain photoelectric effect.With the help of Einstein.s photoelectric equation explain the following fact:Existence of threshold frequency for a given photosensitive material.