P3.5 - Light and Endoscopes

HideShow resource information
  • Created by: Chris
  • Created on: 26-05-10 15:02

Refraction is when light changes speed going from one material to another; the wavelength changes and we usually see a change of direction too.

Total Internal Reflection TIR happens when light travelling in a “faster material” surrounded by a “slower material” meets the boundary; if there is a big change in speed and a big change in direction; if the light waves arrive at an angle greater than the Critical Angle (C), then we get ‘TIR.

Surgeons need illumination inside the body to reflect off the…

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Medical Physics resources »