In optical fibers of uniform density,light actually
A)curves in a direction parallel to the central axis of the fiber.
B)travels in straight-line segments.
C)travels along the outer surface of the fiber.
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 principle of total internal reflection, which causes the light to repeatedly reflect off the walls of the fiber in a zigzag pattern, rather than curving or traveling along the outer surface of the fiber.

In Optical Fibers of Uniform Density,light Actually