Define Plane of Vibration and Plane of Polarization - QS Study
QS Study

The plane containing the optic axis in which the vibrations occur is known as plane of vibration. The plane which is at right angles to the plane of vibration and which contains the direction of propagation of the polarized light is known as the plane of polarization. Plane of polarization does not contain vibrations in it.

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Fig: Planes of vibration and polarization

In the Figure PQRS represents the plane of vibration and EFGH represents the plane of polarization.