In: Physics
1. The binding energy of the photoelectrons of a surface is 1.8 eV. Blue light of wavelength 4.8 x 10^-7 m falls on the surface.
Find
a) kinetic energy of the ejected photoelectrons in eV,
b) the voltage required to stop the photoelectrons from leaving the surface.
This
problem can be solved using basic concepts and governing equation
of photo electric effect.