The Figure Shows a Point Source of Unpolarized Light at a Inside

question 10

Multiple Choice

The figure shows a point source of unpolarized light at A inside a uniform transparent crystal. The ray AO in the crystal strikes the plane surface SS' making an angle of 30° with the normal. This angle is the critical angle for transmission into air.

-For what angle of incidence will the reflected rays of light be completely polarized?

• A)15°
• B)27°
• C)30°
• D)60°
• E)63°

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