PHYSICS · Subjective · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments
Problem
In a step-index optical fiber, the core index is 1.49. The steepest ray of interest makes a 22∘ angle with the fiber axis while propagating inside the core. Determine the largest cladding refractive index that will still confine this ray by total internal reflection.