A scientist observes the splitting of spectral lines when a hydrogen discharge tube is placed in a strong magnetic field. What is this phenomenon called?
Q1. A scientist observes the splitting of spectral lines when a hydrogen discharge tube is placed in a strong magnetic field. What is this phenomenon called?
Answer: Zeeman effect
Explanation: The Zeeman effect is the splitting of lines in a magnetic field; the Stark effect refers to splitting in an electric field.