Definition
Formula
Calculation and Result
The minimum energy, required to free the electron from the ground state of the hydrogen atom, is known as Ionization Energy.
${\mathit{E}}_0=\frac{\mathit{m}{\mathit{e}}^4}{8{\mathit{\epsilon }}_0^2{\mathit{h}}^2}\mathit{i}.\mathit{e}.,.{\mathit{E}}_0\propto \mathit{m}$
Therefore, Ionization Energy will become 200 times.
OR
Formula
Calculation and Result
$\frac{1}{\mathit{\lambda }}=\mathit{R}\left(\frac{1}{2^2}-\frac{1}{{\mathit{\alpha }}^2}\right)$
For shortest wavelength, $\mathit{n}=\mathit{a}$
Therefore, $\frac{1}{\mathit{\lambda }}=\frac{\mathit{R}}{4}=\Rightarrow \mathit{l}=\frac{4}{\mathit{R}}=4\times {10}^{-7}\mathrm{m}$