Question

Optic fibres are better than metallic cable in communication why

Answer 1

fibre optic cable works in the principle of total internal refraction,which gives it a huge speed.whereas a metallic cable don't works in that principle.

Answer 2

Here are a few points why Optic fibres are better than metallic cables

1. Signals are transmitted as light in optic communication. Conventional electronic communication relies on electrons passing through wires.

2. Since fibres transmit signals as light rather than current (as in other cables), they are immune to electromagnetic interference which causes noisy data transmission in wires. 

3. Fibre optic cable is more efficient than other cables as it has lower reduction of force, mainly because light is not radiated out in the way that electricity is radiated from copper cables.