A light source of wavelength l illuminates a metal and
Chapter 27, Problem 27.71(choose chapter or problem)
A light source of wavelength l illuminates a metal and ejects photoelectrons with a maximum kinetic energy of 1.00 eV. A second light source of wavelength l/2 ejects photoelectrons with a maximum kinetic energy of 4.00 eV. What is the work function of the metal?
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