The line perpendicular to the reflecting or refracting surface
The mean angle
The common angle at which waves reflect
How waves reflect and refract
The angle between the incident ray and the normal
The angle between the normal and the surface
The angle between the surface and the ray
The angle between the reflected ray and the normal
The ray before it hits the surface
The ray after it hits the surface
The ray after refraction
The ray at the normal
It changes speed
The speed stays the same
It refracts towards the normal
The light stays the same
The normal changes
The light stays in the material
The largest angle of incidence for which refraction can still occur
The minimum angle for a normal
The angle of the emergent ray
The angle at which refraction occurs
True
False
When light passing from a medium with a moderate refractive index into one with a low refractive index and completely reflects
When light reflects on a surface
Another name for the emergent ray
When a substance absorbs all the light
True
False
Total internal reflection
Refraction
Diffusion
Reflection
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