Refraction (pulled from 8.2 deck) Flashcards
1
Q
refraction
A
the bending of light as it passes from one medium to another and changes speeds
2
Q
index of refraction for a given medium (equation)
A
3
Q
snell’s law
A
4
Q
critical angle
A
when the refracted angle equals 90 degrees
the refracted light ray passes along the interface between the 2 media and never escapes the medium
5
Q
how to calculate the critical angle
A
use snells law and let the second angle = 90
sin (90) = 1
6
Q
total internal reflection
A
a phenomenon in which all the light incident on a boundary is reflected back into the original material
Results when the incident angle is greater than the critical angle
