MCQ
The minimum energy required to excite a hydrogen atom from its ground state is.....$ eV$
  • A
    $13.6$
  • B
    $ - 13.6$
  • C
    $3.4$
  • $10.2$

Answer

Correct option: D.
$10.2$
d
(d) Minimum energy required to excite from ground state
$ = 13.6\left[ {\frac{1}{{{1^2}}} - \frac{1}{{{2^2}}}} \right] = 10.2\;eV$

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