Problems On Photoelectric Effect
1. Light wavelength 500 nm is incident on sodium with a work function of 2.28 eV. What is the maximum kinetic energy of the ejected photoelectron?
2. The work function of a metal is 6.63 eV. What is the threshold wavelength?
3. The threshold wavelength of the metal 12.4 nm. Find the work function of metal?
4. Calculate threshold frequency and work function for a copper surface irradiated with wavelength of 1849 Å and stopping potential is 2.7V
