Question

What is Brewster's law ? Prove that at angle of polarisation reflected rays and refracted rays are mutually perpendicular

Answer 1

 When light is incident at polari sing angle at the interface of a refracting medium, the refractive index of the medium is equal to the tangent of the polarising angle.



Where,

μ → Refractive index of the refracting medium

p → Polarising angle

Polarisation by Scattering



When a beam of light passes through a medium, it gets scattered from the particles constituting the medium, provided the size of the particles is of the order of the wavelength of the light. The scattered light viewed in a direction perpendicular to the direction of the beam of light is found to be plane polarised. It gives us a method to produce plane polarised light by scattering.


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Answer 2

HEY MATE HERE IS YOUR ANSWER:-

It states that the tangent of polarising angle is equal to the refractive index of the material .

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