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What is the Brewster angle for air to glass transition? (Refractive index of glass = 1.5.)

Q10.8  What is the Brewster angle for air to glass transition? (Refractive index of glass = 1.5.)

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Given,

Refractive index of glass \mu_{glass}=1.5

Now as we know,

tan\theta =\mu

where \theta is the polarizing angle, also called the Brewster angle.and \mu is the refractive index.

so from here

\theta =tan^{-1}(\mu _{glass})=tan^{-1}1.5=56.31^0

Hence Brewster angle is 56.31^0.

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