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What Does a Polaroid Consist Of? How Does It Produce a Linearly Polarised Light? - Physics

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ConceptPolarisation

Question

What does a polaroid consist of? How does it produce a linearly polarised light?

Solution

 A polaroid consists of long-chain molecules aligned in a particular direction. The electric vectors (associated with the propagating light wave) along the direction of the aligned molecules get absorbed. Thus, if an unpolarised light wave is incident on such a polaroid, then the light wave will get linearly polarised with the electric vector oscillating along a direction perpendicular to the aligned molecule.

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Solution What Does a Polaroid Consist Of? How Does It Produce a Linearly Polarised Light? Concept: Polarisation.
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