A magnesium surface has a work function of 3.68 eV. Electromagnetic waves with a wavelength of 215 nm strike the surface and eject electrons. Find the maximum kinetic energy of the ejected electrons. Express your answer in electron volts.© BrainMass Inc. brainmass.com February 24, 2021, 2:24 pm ad1c9bdddf
Electromagnetic waves with a wavelength of 215 nm have energy=
h= Planck's constant= 6.63E-34 J s
f=frequency= c/ wavelength;
wavelength= 215 nm= 2.15E-07 m
c= speed ...
The solution calculates the kinetic energy of ejected electrons when electromagnetic waves strike the surface.