Chemistry - Atomic Structure Question with Solution | TestHub

For the Balmer series, in the spectrum of$\mathrm{H}$atom,$\stackrel{-}{\mathrm{v}}={\mathrm{R}}_{\mathrm{H}}\left\{\frac{1}{{\mathrm{n}}_1^2}-\frac{1}{{\mathrm{n}}_2^2}\right\},$the correct statements among$\left(\mathrm{I}\right)$to$\left(\mathrm{I}\mathrm{V}\right)$are,
$\left(\mathrm{I}\right)$As wavelength decreases, the lines in the series converge.
$\left(\mathrm{I}\mathrm{I}\right)$The integer${\mathrm{n}}_1$is equal to$2$/
$\left(\mathrm{I}\mathrm{I}\mathrm{I}\right)$The lines of the longest wavelength correspond to${\mathrm{n}}_2=3$.
$\left(\mathrm{I}\mathrm{V}\right)$The ionization energy of hydrogen can be calculated from the wave number of these lines.