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Using the Rydberg formula
1
/
λ
=
R
H
(
1
/
n
1
2
−
1
/
n
2
2
)
1/\lambda = R_H(1/n_1^2 - 1/n_2^2)
1/
λ
=
R
H
(
1/
n
1
2
−
1/
n
2
2
)
with
R
H
=
1.097
×
10
7
m
−
1
R_H = 1.097\times 10^{7} \text{ m}^{-1}
R
H
=
1.097
×
1
0
7
m
−
1
, find the wavelength of the hydrogen transition from
n
2
=
3
n_2 = 3
n
2
=
3
to
n
1
=
2
n_1 = 2
n
1
=
2
(the H-alpha line). What is
λ
\lambda
λ
in nm?
364.6 nm
486.1 nm
121.5 nm
656.3 nm
Check answer