What is the significance of the core diameter in optical fiber?
A. It determines the amount of light that can be transmitted
B. It determines the fiber’s flexibility
C. It defines the fiber’s resistance to physical stress
D. It determines the signal attenuation rate
Explanation:
The core diameter in optical fiber determines the amount of light that can be transmitted, with a larger core allowing more light to travel through, but with potential higher dispersion for multi-mode fibers.