Question

What do you mean by zeeman and anomalous zeeman effects?

Answer 1

A normal Zeeman effect is observed when a spectral line of an atom splits into three lines under a magnetic field. An anomalous Zeeman effect is observed if the spectral line splits into more than three lines. Astronomers can use the Zeeman effect to measure magnetic fields of stars. Compare Stark effect.

Answer 2

Explanation:

When an atom is placed in a magnetic field, each of its fine structure lines further splits into a series of equidistant lines with a spacing proportional to the magnetic field strength. Theoretically, this is explained by recognizing that the electron has an orbital magnetic moment.