The work function for a particular metal surface is 3.2 eV.
PHYSICS · Multi-part · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter
Problem
The work function for a particular metal surface is 3.2 eV.
(1) Calculate the threshold frequency for the metal surface.
(2) What is the longest wavelength of light that could produce photoelectrons from this metal surface?
(3) The metal surface is illuminated with ultraviolet light of wavelength 6.5×10−8 m. Calculate the maximum kinetic energy of a photoelectron.