What is the angle which the rays of the sun must make with the surface of water (n=1.33) in a lake, so that the reflected rays are completely polarise
What is the angle which the rays of the sun must make with the surface of water (n=1.33) in a lake, so that the reflected rays are completely polarised in a plane parallel to the surface ?
A. `37^(@)`
B. `50^(@)`
C. `72^(@)`
D. `67^(@)`
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Correct Answer - A
`i_p=tan^(-1)(1.33)=53^(@)`
`:.` Angle made by the rays with the surface of water `=90^(@)-53^(@)=37^(@)`
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