Question

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electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1? 2 ev 4 ev 8 ev 12 ev

Answer 1

going between the same two levels produces or absorbs photons of the same energy, thus wavelength and frequency.