Energy of the electron in $n^{th}$ orbit of hydrogen atom is given by $E_n = - \frac{13.6}{n^2} \ eV$. The amount of energy needed to transfer an electron from the first orbit to the third orbit is........$eV$.
- A$13.6$
- B$3.4$
- C$12.09$
- D$1.51$
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View SolutionThe total energy of an electron revolving in the second orbit of a hydrogen atom is
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