Physics · 2019
JEE Main · 9 April 2019, Shift 2 · Q26
A He^+ ion is in its first excited state. Its ionization energy is:
$\displaystyle \mathrm{A} \mathrm{He}^{+}$ion is in its first excited state. Its ionization energy is :
Official answer
(1)
13.$\displaystyle 60$ eV
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.