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hhhmortal
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Homework Statement
A hydrogen atom is initially in the state n=3. Subsequently it falls to its ground state with the emission of a photon. If the photon energy is ћω , then what is the ground state energy?
The Attempt at a Solution
I tried using E= h².n²/8ma².
and got -9ћω/8
I wasn't to sure how to go about with this question.