The maximum wavelength that electromagnetic wave can have and still eject electrons from a metal surface is 468 nm. What is the work function W0 of this metal? Express your answer in electron volts (eV).
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E = Ke + Wo
Wo = E - Ke
since we just eject the electron with 0 Ke that means
Wo = E = h*c/L = 4.25 *10^-19 J
to find ev divide by e
Wo = 2.65 eV
Wo = E - Ke
since we just eject the electron with 0 Ke that means
Wo = E = h*c/L = 4.25 *10^-19 J
to find ev divide by e
Wo = 2.65 eV