Atomic Physics Problem No. 3

Atomic Physics (Problem No. 3) An isolated atom of a certain element emits light of wavelength 520 nm when the atom falls from its fifth excited state into its second excited state. The atom emits a photon of wavelength 410 nm when it drops from its sixth excited state into its second excited state. Find the wavelength of the light radiated when the atom makes a transition from its sixth to its fifth excited state. Reference PHYSICS for Scientists and Engineers with Modern Physics Raymond A. Serway John W. Jewett, Jr. Cengage 9th Edition (2014) Ch. No. 42 (Atomic Physics) Exercise No. 42.3