Question

what is polarisation ........

Answer 1

A process or state in which rays of light exhibit different properties in different directions, especially the state in which all the vibration takes place in one plane. b. The partial or complete polar separation of the positive and negative electric charges in a nuclear, atomic, molecular, or chemical system.
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Answer 2

Answer:

A polarizer or polariser is an optical filter that lets light waves of a specific polarization pass and blocks lightwaves of other polarizations. It can convert a beam of light of undefined or mixed polarization into a beam of well-defined polarization, that is polarized light.