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Jas014
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The wavelength associated with the cut-off frequency, for silver is 325 nm.
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 I am not to sure if I am suppose to use this formula
9.25 * 10^14 = hc/325e - work function
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 I am not to sure if I am suppose to use this formula
9.25 * 10^14 = hc/325e - work function