Physics, 28.07.2019 07:00 dontcareanyonemo
Electrons are ejected from a metallic surface with speeds ranging up to 4.9 105 m/s when light with a wavelength of λ = 625 nm is used. (a) what is the work function of the surface?
Answers: 1
) and part is given to the electron as kinetic energy: 
:
, and so we can re-write the formula as
is the Planck constant
is the speed of light
is the wavelength of the light
is the electron mass
is the electron speed.
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Electrons are ejected from a metallic surface with speeds ranging up to 4.9 105 m/s when light with...
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