A) 27.2 eV
B) -27.2 eV
C) 54.4 eV
D) -54.4 eV
Correct Answer: D
Solution :
Key Idea: Energy of electron in H like ions\[=-13.6\times {{Z}^{2}}eV\] for He Z = 2 \[\therefore \] E of electron in \[H{{e}^{+}}=-13.6\times {{(2)}^{2}}\] = - 54.4 eVYou need to login to perform this action.
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