Other Applications using Light Flashcards
1
Q
What is the critical angle?
A
The angle at which the refracted ray is 90 degrees to the normal
2
Q
What 2 conditions are needed for total internal reflection?
A
Light travels from a more dense to a less dense material, angle of incidence > critical angle
3
Q
What do endoscopes use?
A
Optic fibres as paths for light
4
Q
What can lasers be used as?
A
An energy source for cutting, burning and cauterising
5
Q
When are lasers used?
A
Laser eye surgery
