1.2 Reflection Flashcards
When a wave meets a boundary between 2 materials, three things can happen. What are these 3 things?
The wave can be:
- absorbed
- transmitted
- reflected
What happens when a wave is absorbed by the second material?
It’s energy is transferred to the material, often causing heating
What happens when a wave is reflected?
This is where the incoming ray is neither absorbed nor transmitted, but instead is ‘sent back’ away from the second material
What is the diagram called which is used to show reflection?
Ray diagram
The angle of incidence is always _____ to the angle of reflection
Equal
What is meant by ‘scattered reflection’?
Scattered reflection is where light is reflected in different directions as the normals aren’t the same due to a bumpy surface
Speculation reflection occurs on surfaces where the boundary is _____
Flat
What type of image will specular reflection produce?
A clear image
______ reflection occurs on materials where the surface is bumpy (uneven)
Diffuse
