When a ray of light is incident normally on an air-glass interface, its angle of refraction is? by Sunday | Aug 28 | Physics WAEC | 0 comments A. 0° B. 42° C. 45° D. 60° E. 90° Correct Answer: Option A – 0° Users Also Read These:When a ray of light is incident normally on an air-…A ray of light traveling from a rectangular glass…A ray of light strikes a plane mirror at an angle of…The angle of incidence of a ray of light on a plane…A ray of light is incident at an angle of 30°on a…