Electromagnetic radiation having lamda=310°A is subjected to a metal sheet having work function=12.8eV. What will be the velocity of photo-electrons having maximum kinetic energy

Electromagnetic radiation having lamda=310°A is subjected to a metal

1.	Electromagnetic radiation having lamda=310°A is subjected to a metal sheet having work function=12.8eV. What will be the velocity of photo-electrons having maximum kinetic energy
Answer» 48.Celsius and 48 KINETIC ENERGY