Question
Question: In an optical fiber, light is guided inside the cladding...
In an optical fiber, light is guided inside the cladding
A
True
B
False
Answer
False
Explanation
Solution
Light in an optical fiber propagates through the core by total internal reflection at the core-cladding interface. The core has a higher refractive index than the cladding, which is essential for TIR to confine light within the core.