Physics > 2017 > 29
WASSCE
A ray of light incident at an angle θ in a rectangular prism grazes the surface of the prism on emerging from the prism. Determine the value of θ. [Absolute refractive index of the material of the prism is 1.5].
A.
41.8°
B.
48.2°
C.
60.8°
D.
90.0°
Answer: A
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