An atom has only two levels a ground state with energy -250
An atom has only two levels, a ground state with energy -25.0 eV and an excited state with energy -20.0 eV. What wavelength photon is required for stimulated emission of an electron in the excited state?
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An atom has only two levels, a ground state with energy -25.0 eV, What wavelength photon is required for stimulated emission of an electron in the excited state
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