Problem 6.158

What kind of Zeeman effect, normal or anomalous, is observed in a weak magnetic field in the case of spectral lines caused by the following transitions: (a) \({ }^{1} P \rightarrow{ }^{1} S\) (b) \({ }^{2} D_{5 / 2} \rightarrow{ }^{2} P_{3 / 2}\) (c) \({ }^{3} D_{1} \rightarrow{ }^{3} P_{0}\); (d) \({ }^{5} I_{5} \rightarrow{ }^{5} H_{4} ?\)