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Consider a photon released as a hydrogen electron relaxes from the $n=3$ state to the $n=2$ state.

Will this photon have sufficient energy to eject an electron from a surface with a work function of $3.5\times {10}^{-19}\text{ J}$?


  • $R=1.10\times{10}^{7}{\text{ m}}^{-1}$
  • $h=6.626\times {10}^{-34}\text{J s}$
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