Refraction

Cards (8)

What are features of Specular waves
Normals are in the same direction
Boundary is flat
It gives a clear image
An example is a mirror
What are features of a Diffused / Scattered  
Boundary is rough
Normal go in different directions causing light to be reflected in different directions
We cannot we a clear image at all
Refraction of waves  
When waves change direction when passing through 1 medium to another
why do waves travel at different speeds in different mediums ?
Because different mediums have different densities
The higher the density… 
The slower the wave
What does the line of refraction do in a medium
It goes towards the normal
What else changes if the speed of the waves changes
The wave length
what doesn’t change when wave speed changes
Frequency