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What is angle of polarisation and obtain...

What is angle of polarisation and obtain the equation for angle of polarisaition.

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The angle of incidence at which a beam of unpoolarised light falling on a transparent surface is reflected as a beam of plane polarised light is called polarising angle or Breswter.s angle It is denoted by `i_(p)`
`i_(p) = 90^(@) - r_(p)`
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