In optical fibers of uniform density, light actually
A) curves in a direction parallel to the central axis of the fiber.
B) travels along the outer surface of the fiber.
C) travels in straight-line segments.
D) None of the above choices are correct.

Question

Quizplus · Accepted Answer

In optical fibers of uniform density, light travels in straight-line segments due to the phenomenon of total internal reflection, bouncing off the inner walls of the fiber.

In Optical Fibers of Uniform Density, Light Actually