formula when angle of incidence will the angle between reflected ray and refracted ray is 90 degree
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If light strikes an interface so that there is a 90o angle between the reflected and refracted rays, the reflected light will be linearly polarized. The direction of polarization (the way the electric field vectors point)is parallel to the plane of the interface.
The special angle of incidence that produces a 90o angle between the reflected and refracted ray is called the Brewster angle, θp.
A little geometry shows that tan(θp) = n2/n1
The special angle of incidence that produces a 90o angle between the reflected and refracted ray is called the Brewster angle, θp.
A little geometry shows that tan(θp) = n2/n1
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