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Physics, 13.12.2019 19:31, dsreilly826
In a photoelectric effect experiment you illuminate a metal with light of an unknown wavelength and measure the maximum kinetic energy of the photoelectrons to be 0.65 ev. then you illuminate the same metal with light of a wavelength known to be 2/3 of the first wavelength and measure a maximum kinetic energy of 2.3 ev for the photoelectrons.
(a) find the first wavelength, in nanometers.
(b) find the metal's work function, in electron volts.
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