The Balmer Lines
n = 1
n = 2
n = 4
n = 5
n = 3
H
a
H
b
H
g
The only hydrogen
lines in the visible
wavelength range.
Transitions
from 2
nd
to
higher levels
of hydrogen
2
nd
to 3
rd
level = H
a
(Balmer alpha line)
2
nd
to 4
th
level = H
b
(Balmer beta line)
…
0