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Ultraviolet light with a frequency of 7.5x10^14 Hz is incident upon a piece of potassium with a work function of 2.3eV how much energy do

Ultraviolet light with a frequency of 7.5x10^14 Hz is incident upon a piece of potassium with a work function of 2.3eV how much energy do the electrons admitted from the metal have and what is the momentum of the ultraviolet light photons that strike the metal

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