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For a glass plate as a polarizer with re...

For a glass plate as a polarizer with refractive index 1.633, calculate the angle of incidence at which light is polarised.

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Given : n = 1.633
`n=tan i_(p)`
`implies" "1.633=tan i_(p)`
`implies" "i_(p)=tan^(-1)(1.633)`
`implies" "=58.5^(@)`.
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