Reflection, Refraction And Diffraction Flashcards
1
Q
What is refraction?
A
Waves bend when they pass through a boundary
2
Q
What is diffraction?
A
Waves spread out when they pass through small gaps
3
Q
The light changes direction (bends) because of what?
A
Speed
4
Q
The incident beam’s angle is equal to what?
A
The angle of reflection
5
Q
What does the amount of diffraction depend on?
A
The size of the gap
6
Q
When a wave crosses a boundary between two substances it changes what?
A
Speed
7
Q
What is reflection?
A
Waves bounce off a surface
