electrons produce from photon

Physics is the most important part of our life without physics we can’t did anything. In our daily life physics is directly or indirectly applicable i.e. without physics we can’t did any things. Before the birth of Albert Einstein physics became bright and also other scientist give the nutrient then against the physics became bright. Right now also physics give us twinkle sign and we can’t live without twinkle sign i.e. without physics we can’t live a second. Many electronic device also derived by the application of physics i.e. without physics we can’t got anything which are very very applicable in our daily life. For example computer, calculator, television, vehicles etc. From the physics we got knowledge which important for us. Einstein gives the theory which is related with the work function of the metal and wavelength of the photon. i.e.
hf-hf0=E
Where,
h=plank’s constant,
f= frequency of light at maximum wavelength,
f0=frequency of light at minimum wavelength,