the wavelength of the third line in the Paschen series of hydrogen spectra spectra is ?
In this type of question n1=3 but from where n2 =6 come it is not given
tell me how to solve numerical based on line in other spectral series of hydrogen too
Rydberg formula for calculating the wave number of spectral line is
λ = wavelength
𝓡 = Rydberg Constant
n1 and n2 are principal quantum numbers (integers) and n2 > n1
Name of the spectral series is as below
n1 | n2 | Spectrall Series |
1 | 2, 3, 4, 5, ... | Lyman Series |
2 | 3, 4, 5, 6, ... | Balmer Series |
3 | 4, 5, 6, 7, ... | Paschen Series |
4 | 5, 6, 7, 8, ... | Brackett Series |
5 | 6, 7, 8, 9, ... | Pfund Series |
6 | 7, 8, 9, 10, ... | Humphreys Series |
So if you want to calculate Lyman series, put n1 =1 and n2 = 2, 3, 4,.... and for other series follow the same method.