5. Calculating Photon Energy and the Photoelectric Effect: A Violet Light Given 1 ev = 1.6 x 10^-19 J, a) Determine the energy in joules (J) and electron volts (eV) of a photon of 420-nm violet light? (b) What is the maximum kinetic energy of electrons ejected from calcium by 420-nm violet light, given that the binding energy (or work function) of electrons for calcium metal is 2.71 eV? Your answer

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