total internal reflection Flashcards
memorize
1
Q
what is the critical angle
A
the angle of incidence that makes the refracted ray 90 degrees
2
Q
in order for total internal reflection to occur, what 2 things must happen
A
- incidence angle must be greater than critical angle
- light must be traveling from a more dense medium to a less dense medium
3
Q
the higher the refracted index, the
A
lower the critical angle
4
Q
the lower the critical angle, the
A
more possible angles for total internal reflection to occur
5
Q
as the speed of light in a medium increases, the
A
index of refraction decreases
6
Q
A