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When light in vacuum is incident at the polarizing angle (Brewster's angle) on a certain glass slab, the angle of refraction is 31.8 degree. Calculate the values of : i): the polarizing angle theta_p of the glass.
ii): the index of refraction, n, of the glass.

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Answer:

Explanation:

θ( p ) + θ( r ) = 90  

θ (r) = angle of refraction and θ ( p ) is polarising angle.

given θ ( r ) = 31.8

θ ( p ) = 90 - 31.8 = 58.2 degree

ii ) Tanθ ( p ) = n ( refractive index ) = Tan 58.2 = 1.6

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