Light Signals Can Travel Through Optical Fibres Flashcards
1
Q
What can visible light also be used for?
A
Communication using optical fibres
2
Q
What do optical fibres do?
A
Carry data over long distances as pulses of light
3
Q
How do optical fibres work?
A
By bouncing waves off the sides of a very narrow core
4
Q
What does the pulse of light do?
A
Enters the fibre at a certain angle at one end and is reflected again and again until it emerges at the other end
5
Q
What are optical fibres increasingly being used for?
A
- Telephone and broadband internet cables
- medical purposes to ‘see inside’ the body without having to operate
