light waves Flashcards
1
Q
What type of waves are transverse?
A
Light waves
2
Q
What makes an object translucent?
A
All light passes through them.
3
Q
What travels most quickly?
A
Light waves
4
Q
The angles of incidence always equal what?
A
The angle of reflection
5
Q
Why does light refract?
A
Because the speed changes when it enters the medium.
6
Q
What type of lens focuses light on a point?
A
Converging.
7
Q
What are the three primary colours in light?
A
Red, green and blue
8
Q
What is the retina?
A
The retina is that light-sensitive section at the back of your eye
9
Q
What type of reflection is seen in a mirror?
A
Specular reflection is seen in a mirror.
