Physics for IGCSE & O level - Rays And Waves (Section 5 - No. 33)
What is a benefit of using optical fibres?
They do not allow light to travel through them.
They can transmit signals over long distances with minimal signal loss.
They are easily damaged and require frequent replacement.
They are not affected by external interference.
Giải thích
Optical fibers transmit signals over long distances with minimal signal loss.