Discuss the mechanisms behind the polarisation ... - SS1 Physics Wave Optics Question

The polarisation of light occurs due to the interaction of light waves with certain materials or phenomena. When light waves encounter a polarising filter, such as a polarising film, the filter contains long-chain molecules that are aligned in a specific direction. These molecules absorb or block light waves vibrating perpendicular to their alignment while allowing light waves vibrating parallel to their alignment to pass through. This selective absorption or transmission of light waves results in polarised light. The aligned molecules in the polarising filter act as a barrier to specific orientations of the electric field component of the light waves, thus creating the polarisation effect.