A) ? 4.2 V
B) ? 9.4 V
C) ? 17.8 V
D) +9.4 V
Correct Answer: B
Solution :
\[E={{W}_{0}}+e{{V}_{0}}\] For hydrogen atom, \[E=+13.6\,eV\] \ + 13.6 = 4.2 + eV0 Þ \[{{V}_{0}}=\frac{(13.6-4.2)\,eV}{e}=9.4\,V\] Potential at anode = ? 9.4 VYou need to login to perform this action.
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