The wavelength of the third line in the Pfund series of a hydrogen atom is: (RH = 1.097 × 10⁷ m⁻¹)
Pfund: n₁=5, n₂=8. λ = 3741 nm.
Ref: NCERT Class 11 Chemistry > Chapter 2: Structure of Atom > Topic: Discovery of Subatomic Particles - Electron Proton Neutron
