The cladding which surrounds the optic fiber line is used
- A. To protect the fiber
- B. To reduce optical interference
- C. Because it help to guide light in the core
- D. To ensure that refractive index remains constant
Answer: C. Because it help to guide light in the core
Explanation: The cladding has a slightly lower refractive index than the core (n_cladding < n_core), establishing total internal reflection (TIR) to guide optical signals along the fiber core.