Q. Stark effect refers to the

A) Splitting up of the lines in an emission spectrum in the presence of an external electrostatic field
B) Random scattering of light by colloidal particles
C) Splitting up of the lines in an emission spectrum in a magnetic field
D) Emission of electrons from metals when light falls upon them
Explanation

(a)
Splitting of spectral lines under the influence of an external electrostatic field is called Stark effect.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.