polarization by reflection Brewster's angle

Polarization occure in many way one of them occur due to reflection . When light fall on the surface of a media having refractive index n it get refracted . The angle of refraction and path can be determined by using Snell's law . Also some of light reflected (absorbed and then radiated) from the surface when the angle between reflected ray and transmitted ray is 90(degree) . The angle of incidents is called Brewster's angle . 


At that point what actually occur at the surface is the dipole that exists on the material act like polarizer absorbing only certain angle polarized light that is absorbing Electric field vector (E or B) and oscillate with same frequency as of light. Resulting  radiation (According to Maxwell theory) of electro-magnetic wave . But this time the oscillating dipole have only one E vector direction resulting a polarized light .  

So the conclusion is that

" light reflected from media at Brewster's angle is polarized and depends upon the refractive index of medium "

The relationship between  Brewster's angle and refractive index with proof is given bellow

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