The ratio of the shortest wavelength of two spectral series of hydrogen spectrum is found to be about 9. The spectral series are: (1) Paschen and Pfund (2) Balmer and Brackett (3) Lyman and Paschen (4) Brackett and Pfund
The ratio of the shortest wavelength of two spectral series of hydrogen spectrum is found to be about 9. The spectral series are:\\
(1) Paschen and Pfund\\
(2) Balmer and Brackett\\
(3) Lyman and Paschen\\
(4) Brackett and Pfund