In my textbook it said the following:
Photons with wavelengths in the spectral range of $[94nm,104nm]$$[94\mathrm{\ nm},104\mathrm{\ nm}]$, interact the hydrogen atom in the basic state. Photons having those wavelengths can stimulate the hydrogen atom to $n=3,4,5$ levels.
I'm trying to figure out why it's true. Given some wavelength $\lambda$, how can I know which level it can get?
I'm familiar with the Rydberg formula: $$ \frac{1}{\lambda_{m\to n}}=R\cdot\left(\frac{1}{n^2}-\frac{1}{m^2}\right) $$ where $m>n$ and $R=1.097\cdot10^{-7}m^{-1}$$R=1.097\cdot10^7\ \mathrm{m}^{-1}$. But because there are two values $n,m$, I'm struggling to figure out a sophisticated way to find the levels. I could just insert $\lambda=94nm$$\lambda=94\mathrm{\ nm}$ and check for each $n$ it's $m$'s but it sounds like not so much a sophisticated way. Is there a better way?