Fiber optic cable is made of a transparent, cylindrical fiber called the core, surrounded by a layer of transparent material called the cladding. The core and the cladding have What is the critical angle for light traveling in the core than encounters the core-to-cladding interface? different index of refraction values. Express your answer with the appropriate units. Light rays travel a very long distance in the fibers due to total internal reflection of light in the core. For this problem, the glass core of an optical fiber has an index of View Available Hint(s) refraction 1.60. The index of refraction of the cladding is 1.52. (Figure 1) Ocrit = Value Units Submit Part B Which of the following is true? 100% of the light incident on the core-to-cladding interface will reflect off of the cladding when: O Oincident > Ocrit Gincident ncladding n core Cladding