Question
In: Physics
a clean nickel surface is exposed to light of wavelength 235nm. what is the maximum speed...
a clean nickel surface is exposed to light of wavelength 235nm. what is the maximum speed of the photoelectrons emmited from This surface?
Solutions
Expert Solution
Work function of Nickel is 5.01 eV. According to the
photoelectric effect law maximum kinetic energy of electron is the
excess amount of energy presesnt in the light photon over the work
function.For a photon 
. where E is the energy of light photon h=planks constant
e=electron charge c= speed of light 
. Energy of given photon 
. Work function 
.
where K.E. is kinetic energy of photoelectron.
genius_generous answered 2 years agoRelated Solutions
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