A) 13.6 V
B) 3.4 V
C) 10.2 V
D) 3.6 V
Correct Answer: C
Solution :
Excitation potential\[=\frac{\text{Excitation energy}}{\text{e}}\] Minimum excitation energy corresponds to excitation from \[n=1\] to \[n=2\] \ Minimum excitation energy in hydrogen atom \[=-3.4-(-13.6)=+10.2\,eV\] so minimum excitation potential = 10.2 eV.
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