According to the Zeeman effect, the splitting of a sunspot's spectral lines is due to:
A)their rapid rotation.
B)temperature variations.
C)their magnetic fields.
D)their radial velocity.
E)a Doppler shift.

Question

Quizplus · Accepted Answer

The Zeeman effect is caused by the splitting of spectral lines in the presence of a magnetic field. Therefore, the splitting of a sunspot's spectral lines is due to its magnetic field. The Zeeman effect is the splitting of a spectral line into multiple components in the presence of a magnetic field. Therefore, the splitting of sunspot spectral lines is due to their magnetic fields.

According to the Zeeman Effect, the Splitting of a Sunspot's