Solved: The work function of potassium is 3.68 3 10219 J.
Chapter 7, Problem 7.21(choose chapter or problem)
The work function of potassium is 3.68 3 10219 J. (a) What is the minimum frequency of light needed to eject electrons from the metal? (b) Calculate the kinetic energy of the ejected electrons when light of frequency equal to 8.62 3 1014 s21 is used for irradiation
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