A ray of light traveling from glass into ethyl alcohol is incident at the boundary...
PHYSICS
WAEC 2020
A ray of light traveling 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°
- B. 33.5°
- C. 51.7°
- D. 72.8°
Correct Answer: B. 33.5°
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