Total internal reflection Flashcards
1
Q
What is the critical angle?
A
It is the angle of incidence at which all the light is sent along the boundary between the tomb materials
2
Q
What are optical fibres?
A
An optical fibre is a 10 piece of flexible glass
Light control down due to total internal reflection
3
Q
What are optical fibres used for?
A
Communications such as phone and TV signals
Medical endoscopes
4
Q
What is cladding?
A
Cladding is added to the outside of optical fibre to reduce the amount of light that is lost
5
Q
How does cladding work?
A
It gives the light rays a second chance at total internal reflection
