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13 April, 18:59

What is Brewster's angle for an air-glass n = 1.58 surface

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  1. 13 April, 21:29
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    n₂ = index of refraction of glass = 1.58

    n₁ = index of refraction of air = 1

    θ = Brewster's angle

    Brewster's angle is that incident angle at which the the reflected light from the interface of two medium is completely polarized.

    Brewster's angle is given as

    θ = tan⁻¹ (n₂ / n₁)

    θ = tan⁻¹ (1.58/1)

    θ = 57.7 deg

    hence the Brewster's angle comes out to be 57.7 deg
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