A thin glass which light can travel through. The light bounce off the glass and travels through.
How are optical fibres used in endoscope.
According to "How stuff "works endoscopes have two sets of fibers: an outer ring of incoherent fibers that supplies the light, and an inner coherent bundle that transmits the image.
What benefits do endoscopes provide society
They provide less scaring and a new way to observe the body without cutting it open.
Outline the use of fibre optics in telecommunications
According to How stuff works computer and electronics the fibre optics are coated in a mirror reflecting metal and when light shines in send that image with the light along the thread.
Describe positive and negative impacts of the use of optical fibres in communications.
Positive impacts being that communications speed will be improved and new medical research will benefit the community.
Negative impacts such as land will have to dug up and construction around suburbs and buildings will need to take place.
Bibliography
How stuff works
A discovery company
http://computer.howstuffworks.com/fiber-optics-info.htm
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