Physics, 18.11.2019 18:31 Emilyvite6251
An electron in a box is in the ground state with energy 2.0 ev. (a) find the width of the box. (b) how much energy is needed to excite the electron to its first excited state? (c) if the electron makes a transition from an excited state to the ground state with the simultaneous emission of 30.0-ev photon, find the quantum number of the excited state?
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