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What is a partially polarised light ?...

What is a partially polarised light ?

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In the phenomenon of scattering of light occurring at `90^(@)` and the angle of polarisation one of two components of the electric field, one component is zero.
At angle except the angle of polarisation, both components are present but one component is stronger than the other.
There is no permanent relation between these two components because both of these components are obtained from two perpendicular components of unpolarised light.
If light of these two perpendicular components is view from an analyzer, we see maximum and minimum intensity but it does not look fully dark. This kind of light is called partially polarised light.
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