Multiple choice

Which of the following provides a path for the signals to travel in the form of light?

  1. Microwave transmission

  2. Bluetooth technology

  3. Coaxial cable

  4. Infrared rays

  5. Optical fiber

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

An optical fiber is a very thin fiber made of glass that functions as a waveguide for light. It transmits signals in the form of light i.e. the visible part of the spectrum.