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

Question

Quizplus · Accepted Answer

In optical fibers of uniform density, light travels in straight-line segments due to total internal reflection. The fiber has a higher index of refraction than the surrounding medium, causing the light to reflect off the boundary between the fiber and the medium, ultimately traveling through the fiber in a straight line.

In Optical Fibers of Uniform Density, Light Actually