Q32Short answer
The Balmer series in the hydrogen spectrum corresponds to the transition from n1 = 2 to n 2 = 3,4,......... . This series lies in the visible region. Calculate the wave number of line associated with the transition in Balmer series when the electron moves to n = 4 orbit. (RH = 109677 cm–1)
Show answer
109677 2 2 cm 1 n i n f For ni = 2 to nf = 4 transition in Balmer series. ∴ 109677 12 12 cm 1 2 4 1 1 1 109677 cm = 20564.44 cm–1 4 16