Photoelectric EffectHard
Question
The energy difference between the first two levels of hydrogen atom is 10.2 eV. What is the corresponding energy difference for a singly ionized helium atom ?
Options
A.10.2 eV
B.20.4 eV
C.40.8 eV
D.81.6 eV
Solution
En = 13.6 
ᐃ EH =
= 10.2eV
ᐃEHe =
= 40.8 eV
ᐃ EH =
= 10.2eVᐃEHe =
= 40.8 eVCreate a free account to view solution
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