Physics - Modern Physics Question with Solution | TestHub

A doubly ionised $\mathrm{Li}$ atom is excited from its ground $\mathrm{state}(n=1)$ to $n=3$ state. The wavelengths of the spectral lines are given by ${\lambda }_{32},{\lambda }_{31}$ and ${\lambda }_{21}$. The ratio ${\lambda }_{32}/{\lambda }_{31}$ and ${\lambda }_{21}/{\lambda }_{31}$ are, respectively