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btbam91
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In a photoelectric-effect experiment, the stopping potential at a wavelength of 400 nm
is 25.7% of the stopping potential at a wavelength of 300 nm. Of what metal is the
cathode made?
So I need to find the stopping potential of the metal with a wave length of 400 nm, but first I need to find the stopping potential of the metal with a wave length of 300 nm.
Using:
V(stop)=Kmax/e
Kmax=hf-Eo(work function)
How do I find the work function for the 300 nm?
Thanks.
is 25.7% of the stopping potential at a wavelength of 300 nm. Of what metal is the
cathode made?
So I need to find the stopping potential of the metal with a wave length of 400 nm, but first I need to find the stopping potential of the metal with a wave length of 300 nm.
Using:
V(stop)=Kmax/e
Kmax=hf-Eo(work function)
How do I find the work function for the 300 nm?
Thanks.