- #1
bemigh
- 30
- 0
Alright, let's be real here
Electrons are ejected from a metal surface with speeds ranging up to 4.71×105 m/s when light with a wavelength of lambda = 628 nm is used. What is the work function (in eV) of the surface?
Alright, money, using the formula: Max Kinetic energy = hf - Eo
where Eo is the work function. You have all the givens, the answer is supposed to be in eV. Now, I am not sure what's happening, but I am not geting the right answer. To see if I am doing something wrong, i got Kinetic energy=1.010485755x10^-19, and hf=-2.5999x10^-21
try it yourself, maybe I am screwing up the units
Cheers
Electrons are ejected from a metal surface with speeds ranging up to 4.71×105 m/s when light with a wavelength of lambda = 628 nm is used. What is the work function (in eV) of the surface?
Alright, money, using the formula: Max Kinetic energy = hf - Eo
where Eo is the work function. You have all the givens, the answer is supposed to be in eV. Now, I am not sure what's happening, but I am not geting the right answer. To see if I am doing something wrong, i got Kinetic energy=1.010485755x10^-19, and hf=-2.5999x10^-21
try it yourself, maybe I am screwing up the units
Cheers