Question

What replaced copper wires in long distance communicationas they are cheaper and less bulky than copper cables carrying the same information

Answer 1

Optical Fiber

Step-by-step explanation:

Optical fibers have replaced copper wire in long distance communication as they are cheaper and less bulky than copper cables carrying the same information. Optical Fibers transfer information from one place to another by sending pulses of infrared light signals. Light act as carrier waves.