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] by Sunday | Mar 24 | Physics WAEC | 0 comments A. 27° B. 33.5° C. 51.7° D. 72.8° Correct Answer: Option C = 51.7° Users Also Read These:When a ray of light is incident normally on an…A beam of light is incident from air to water at an…When a ray of light is incident normally on an air-…A ray of light incident at an angle θ in a…A ray of light traveling from a rectangular glass…