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A magnesium surface has a work function of 3.68 eV. Electro magnetic waves with a wavelength of 215 nm strike the surface and eject electrons. Find...

A magnesium surface has a work function of 3.68 eV. Electro magnetic waves with a wavelength of 215 nm strike the surface and eject electrons. Find the maximum kinetic energy of the ejected electrons. Express your answer in electron volts.

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