Which of the following conditions must be satisfied for total internal reflection to…
PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
Which of the following conditions must be satisfied for total internal reflection to occur when a light ray in medium 1 strikes the boundary with medium 2?
(a) n1>n2 and the angle of incidence equals the critical angle
(b) n1<n2 and the angle of incidence exceeds the critical angle
(c) n1>n2 and the angle of incidence exceeds the critical angle
(d) n1>n2 and the angle of incidence is less than the critical angle