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a) What is the work function for silver?

b) Find the maximum kinetic energy and speed of the electrons ejected from a silver surface by ultraviolet light of wavelength 254 nm.

So far for part a) i have:

f = c / 325 = 9.25 * 10 ^ 14

After that im not to sure if im suppose to use this formula

9.25 * 10^14 = hc/325e - work function