The electron in the hydrogen atom jumps from excited state $\left( {n = 3} \right)$ to its ground state $\left( {n = 1} \right)$ and the photons thus emitted irradiate a photosensitive material. If the work function of the material is $5.1\,\,{\rm{eV}}$, the stopping potential is estimated to be (the energy of the electron in ${n^{th}}$ state${E_n} = - \frac{{13.6}}{{{n^2}}}\,eV$)Failed to load question data. Please try again later.
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