GENERAL GEOLOGY

Detailed explanation-1: -Polarization by Refraction Polarization can also occur by the refraction of light. Refraction occurs when a beam of light passes from one material into another material. At the surface of the two materials, the path of the beam changes its direction. The refracted beam acquires some degree of polarization.

Detailed explanation-2: -When the unpolarised light is passed through a polarizer, a linearly or plane polarised light is produced. This plane polarised light when passed through a birefringent ‘quarter wave plate’, two components of the circularly polarised light can be produced.

Detailed explanation-3: -Asymmetric crystals can be utilized to produce polarized light when an electric field is applied to the surface. A common scientific device that employs this concept is termed a Pockels cell, which can be utilized in conjunction with polarized light to change the polarization direction by 90 degrees.

Detailed explanation-4: -Methods Used in the Polarization of Light Polarization by Reflection. Polarization by Scattering. Polarization by Refraction.