Whenever light waves are restricted to a specific plane they are said to be
Answer Details
Whenever light waves are restricted to a specific plane they are said to be "plane polarized". In other words, when the vibrations of light waves occur only in a single plane perpendicular to the direction of propagation, they are said to be plane polarized. This can be achieved by using polarizing filters that block light waves vibrating in all but one direction. Plane polarized light waves have several important applications in science and technology, including in the study of crystal structures, 3D movie technology, and LCD screens.