Physics > 2020 > 16
WASSCE
A ray of light travelling from glass into ethyl alcohol is incident at the boundary at an angle of incidence 30∘. calculate the angle of refraction.[Refractive index of glass =1.5; refractive index of ethyl alcohol = 1.36]
A.
27.0∘
B.
33.5∘
C.
51.7∘
D.
2.8∘
Answer: B
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