Apologies, but I have another photoelectron question. In this one I get a result that seems reasonable, however it does not show up on my list of work functions that I have available to choose from. The problem is:
A photoelectric-effect experiment finds a stopping potential of 1.93V when...
Ok, so taking the K of 2.668 eV and converting to joules I got 4.3x10^-19, then plugging those results into the my final equation I ended up with 9.7x10^5 m/s which sounds much more reasonable, but I just want to double check that I did that portion correctly. Was that the result you ended up with?
Alright, I am having some trouble with the following problem, because my solution I arrive at seems to be way too large. The problem is:
What is the maximum photelectron speed if potassium is illuminated with light of 250 nm?
From that I have
λ = 250 nm
f = c/λ = 3x10^8 / 250x10^-9 =...