See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

(P) Shortest wavelength in Balmer series of Li2+ 2 2 2 1 1 1 9R 4x R 3 , 4 9 2              (Q) Longest wavelength in Balmer series of He+ 2 2 2 1 1 1 5R 9x R 2 , 9 5 2 3             (R) Longest wavelength in Lyman series of He+ 2 2 2 1 1 1 x R 2 3R, 3 1 2             (S) Shortest wavelength in Lyman series of Li2+ 2 2 2 1 1 1 x R 3 9R, 9 1             