question_answer

The energy required to dislodge electron from excited isolated H-atom, \[I{{E}_{1}}=13.6\,\,eV\] is         [DCE 2000]

A)                 \[=\,13.6\,eV\]

B)                 \[>\,13.6\,eV\]

C)                 \[<13.6\]and\[>3.4\,eV\]            

D)                 \[\le \,3.4\,eV\]