In H-atom, wave number ratio is 108:7 for — Atomic Structure Chemistry Question

💡 Solution & Explanation

First Lyman (n=2→1): ν̄_L = 3R/4. First Paschen (n=4→3): ν̄_P = R*(1/9 - 1/16) = 7R/144. Ratio = (3R/4)/(7R/144) = 108:7.