fibre optics Flashcards
In fibre optics, the principle of total internal reflection means incident light will ricochet from wall to wall along the insider of the conductor when what angle has been achieved?
critical angle
Fibre optics have a core surrounded by an optical glass cladding. The core has what refractive index in relation to the cladding?
The same
A major advantage for the use of fibre optics over copper cables, is that:
Fibre optics have a higher capacity or bandwidth for information
One of the main disadvantage for the use of fibre optics over copper cables, is that:
Splicing and joining requires special tools and skills
The process used with fibre optics to maximise the bandwidth by using non-overlapping frequencies is called:
multiplexing
Speed is another advantage for the use of fibre optics. At approximately what speed does the signal travel at inside a fibre optic?
200,000 kilometres per second
An advantage of fibre optics is the speed at which the signal travels at inside the fibre. How is the signal sent down the fibre optic?
Light waves
The Southern Cross network is a 28,900 submarine cable that connects, Australia, NZ, Fiji, Hawaii and the West Coast of the USA. It incorporates repeaters, to boost the signal, every _______________. Please select the correct answer
40 – 70 kilometres
The smallest detector element that an x-ray can be captured in is the description of the term:
Del
What would be the correct term used to classify CR Computed Radiography?
Passive detection