Question

Zeeman and Stark's effects can be explained by quantum numbers.

• A. Principal
• B. Azimuthal
• C. Magnetic
• D. Spin

Answer 1

The correct option is C

Magnetic

The explanation for the correct option: (C)

1. The splitting of spectral lines in presence of an electric field is known as the Stark's effect whereas the splitting of spectral lines in the presence of a magnetic field is called the Zeeman effect.
2. It is by the introduction of magnetic quantum numbers that Zeeman and Stark's effects are explained.

The explanation for the incorrect options:

(A) Zeeman and Stark's effects can be explained by a magnetic quantum number, not a principal quantum number.

(B) It is not the azimuthal quantum number that explained the Zeeman and Stark's effects.

(D) Zeeman and Stark's effects cannot be explained by spin quantum numbers.

Hence, option (C) is correct - Zeeman and Stark's effects can be explained by magnetic quantum number.