The wavelength of a spectral line obtained by an electronic transition is inversely proportional to — Atomic Structure Chemistry Question

💡 Solution & Explanation

The energy difference between two levels is given by Planck's equation $\Delta E = \frac{hc}{\lambda}$. Rearranging gives $\lambda = \frac{hc}{\Delta E}$, which shows that the wavelength is inversely proportional to the energy difference of the related energy levels. Therefore, correct answer is C.