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An electron with kinetic energy of 12.50 eV hits a hydrogen atom in its ground state.
(a)Sketch the hydrogen energy level diagram, showing the transition to all possible excited state.
(b) Find all the possible kinetic energies of the outgoing electron.
(c) In the same sketch as part (a), draw all possible transitions when the atom relaxes and emits a photon.
(d) Find the wavelengths of all the possible emission photons.
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