Total Internal Reflection Flashcards
1
Q
What to happens to a light ray if the angle of incidence = the critical angle?
A
Ray goes along surface of glass block
2
Q
What to happens to a light ray if the angle of incidence is less than the critical angle?
A
Small internal reflection
3
Q
What to happens to a light ray if the angle of incidence is more than the critical angle?
A
Total internal reflection
4
Q
What uses total internal reflection and what is an example of this?
A
Optical fibres to send light along them .eg. Endoscope for creating internal images
5
Q
Does a dense material have a high or low refractive index and critical angle?
A
High refractive index and low critical angle
