A photoelectric surface has a work function of 2.10 eV. Calculate the maximum kinetic energy, in eV,
of electrons ejected from this surface by electromagnetic radiation of wavelength 356 nm. (1 eV = 1.60 × 10-19 J, c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s)
1.39 eV
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