A sample of hydrogen atoms is irradiated with light with wavelength 8S.5 nm, and electrons are observed

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A sample of hydrogen atoms is irradiated with light with wavelength 8S.5 nm, and electrons are observed leaving the gas.
(a) If each hydrogen atom were initially in its ground level, what would be the maximum kinetic energy in electron volts of these photoelectrons?
(b) A few electrons are detected with energies as much as 10.2eV greater than the maximum kinetic energy calculated in part (a). How can this be?
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