Let There Be Light!

1. Look at the figure showing five billiard balls of different colours. Decide which ball:

• • Does not absorb any component of white light
  • Absorbs all components of white light
  • Reflects all components of white light
  • Does not reflect any component of white light
  • Reflects only the green component of white light
  • Reflects only the blue component of white light
  • Absorbs all components of white light except red light

2. Make conclusions. What does the colour of the billiard balls depend on?

3. The second row of the given figure shows solids that are not in the primary colours.

4. Answer the questions:

a. At the bottom left is a blue-green disc – cyan. From which two reflected components of white light is this colour composed?

b. In the middle, there is a magenta disc. Which two reflected components of white light create this colour?

c. In the bottom right corner is a yellow disc. Which two reflected components of white light create the yellow colour?