Rydberg Constant

#Physics

$\displaystyle \mathcal{R}\equiv \frac{m_{e}}{4\pi c\hbar ^{3}}\left( \frac{e^{2}}{4\pi {\varepsilon}_{0}} \right)^{2}=1.097\cdot 10^{7}\mathrm{m^{-1}}$

• Used to calculate differences between different hydrogen energy levels