Optics 7 (Internal Reflection) Flashcards
1
Q
conditions for TIR
A
- light must be speeding up
- incident ry must be greater than critcal angle
2
Q
what is critical angle
A
the point where light stops refracting and reflects instead
3
Q
every medium has its own…
A
critical angle
4
Q
if inciden ray is less than critical angle
A
light will refact away from the normal
5
Q
if incident > critical angle
A
REFLECT
6
Q
if incident ray = critical angle
A
light will do neither
