1.

If first orbit energy of \[H{{e}^{+}}\] is - 54.4 eV, then the second orbit energy will be [Roorkee 1995]

A. - 54.4 eV
B. - 13.6 eV
C. - 27.2 eV
D. + 27.2 eV
Answer» C. - 27.2 eV


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