Which statement about cladding is true?

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Prepare for the Airstream Gate 5 Fiber Optic Test with comprehensive study materials including flashcards and multiple-choice questions, all equipped with hints and explanations. Ace your exam!

Multiple Choice

Which statement about cladding is true?

Explanation:
Guiding light in an optical fiber relies on total internal reflection, which happens when light travels from a medium with a higher refractive index to one with a lower refractive index and hits the boundary at a shallow angle. Since the core has the higher refractive index, the cladding must have a lower refractive index than the core to keep the light trapped inside the core. That setup enables efficient transmission along the fiber. The cladding isn’t the outer jacket, and it doesn’t surround the buffer—the buffer sits outside the cladding, protecting it.

Guiding light in an optical fiber relies on total internal reflection, which happens when light travels from a medium with a higher refractive index to one with a lower refractive index and hits the boundary at a shallow angle. Since the core has the higher refractive index, the cladding must have a lower refractive index than the core to keep the light trapped inside the core. That setup enables efficient transmission along the fiber. The cladding isn’t the outer jacket, and it doesn’t surround the buffer—the buffer sits outside the cladding, protecting it.

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