Wave Optics - Polarization Of Light

Description:

As we know light waves are generated by vibration of electric charge. When the vibration in a light wave occurs in a single phase (i.e. only in one direction) then this light wave is said to be POLARIZED light. If the vibration in light wave is in more than one phase (i.e. multiple directions) then it said to be UNPOLARIZED light.

The process of converting a light from unpolarized to polarized is known as POLARIZATION.

Polariser is responsible for converting the light from unpolarized to polarized form by allowing the electric charge vibrating in a particular direction to pass through it and eliminating the particle that are vibrating in all other directions.

Analyzer is used to check whether the light is completely polarised or not. If placing the analyser in the direction of vibration makes the light visible and after making the analyser perpendicular to the direction of vibration the light is not visible, then the light is completely polarized.