1.

If the binding energy of the electron in a hydrogen atom is 13.6 eV, the energy required to remove the electron from the first excited state of \[L{{i}^{++}}\] is [AIEEE 2003]

A. 122.4 eV   
B. 30.6 eV
C. 8 to 88 MHz  
D. 3.4 eV
Answer» C. 8 to 88 MHz  


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