In: Physics
Barium has a work function of 2.48 eV. What is the maximum
kinetic energy of electrons if the metal is illuminated by UV light
of wavelength 420 nm?
eV
What is their speed?
m/s
Given data
Work function
Wavelength of UV light
Maximum kinetic energy can be given by
Planck's constant
speed of light
Consider the speed of the electron
Mass of the electron