- #1
carus88
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'light of wavelength 180nm falls on an aluminium surface. the work funct is 4.2eV.
what is the KE of the fastest and slowest emmited photoelectrons?
Also the cutoff wavelength for the Aluminium?
i only need the right equations an a little guidance as i myt as well be a complete novice.
i have worked out what i think is the max KE as 2.69eV
using KE max = hf - W (w as the work funct)
what is the KE of the fastest and slowest emmited photoelectrons?
Also the cutoff wavelength for the Aluminium?
i only need the right equations an a little guidance as i myt as well be a complete novice.
i have worked out what i think is the max KE as 2.69eV
using KE max = hf - W (w as the work funct)
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