fibre optics

Question 1

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?

Answer 1

critical angle

Question 2

Fibre optics have a core surrounded by an optical glass cladding. The core has what refractive index in relation to the cladding?

Answer 2

The same

Question 3

A major advantage for the use of fibre optics over copper cables, is that:

Answer 3

Fibre optics have a higher capacity or bandwidth for information

Question 4

One of the main disadvantage for the use of fibre optics over copper cables, is that:

Answer 4

Splicing and joining requires special tools and skills

Question 5

The process used with fibre optics to maximise the bandwidth by using non-overlapping frequencies is called:

Answer 5

multiplexing

Question 6

Speed is another advantage for the use of fibre optics. At approximately what speed does the signal travel at inside a fibre optic?

Answer 6

200,000 kilometres per second

Question 7

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?

Answer 7

Light waves

Question 8

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

Answer 8

40 – 70 kilometres

Question 9

The smallest detector element that an x-ray can be captured in is the description of the term:

Answer 9

Del

Question 10

What would be the correct term used to classify CR Computed Radiography?

Answer 10

Passive detection