What is the maximum velocity ( in km / s ) of a photoelectron emitted from a surface whose Work function is 5 . 0 eV when illuminated by a : light whose wavelen
Physique/Chimie
batoolnaamneh
Question
What is the maximum velocity ( in km / s ) of a photoelectron emitted from a surface whose Work function is 5 . 0 eV when illuminated by a : light whose wavelength is 200 nm ?
1 Réponse
-
1. Réponse camilletd
réponse: énergie des photons de longueur d'onde l= 0,25 µm = 2,5 10-7 m.