# NEET Physics Atoms Questions Solved

Energy of the electron in nth orbit of hydrogen atom is given by ${\mathrm{E}}_{\mathrm{n}}=-\frac{13.6}{{\mathrm{n}}^{2}}\mathrm{eV}$. The amount of energy needed to transfer electron from first orbit to third orbit is

(a) 13.6 eV             (b) 3.4 eV
(c) 12.09 eV            (d) 1.51 eV

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