Addition and Subtraction of Light

Which of the following is NOT a primary color of light?

• Red

• Blue

• Yellow

• Green

How does light behave when hitting this shirt?

• Yellow is absorbed; all other colors are reflected.

• Yellow is reflected; all other colors are absorbed.

• All colors are absorbed, but yellow is refracted.

• Yellow is scattered and all other colors are absorbed.

Which color will transmit through the filter?

• Red only

• Blue and Violet

• Green

• All colors

Magenta light is a mix of which two colours?

• red

• green

• blue

What colours is white light made from?

• Orange, Green, Pink, Magenta, Peach, Rose, Lemon

• Red, Orange Yellow, Green, Black, Indigo, Violet

• Red, Orange, Yellow, Green, Blue, Indigo, Violet

• Red, Orange, Yellow, Grey, Blue, Indigo, Violet

Which pair of colours do NOT combine to make the correct secondary colours?

• Red + Blue = Magenta

• Red + Green = Yellow

• Blue + Green = Cyan

• Red + Yellow = Green

The process of mixing primary coloured lights to produce secondary coloured lights.

This process related to

• Dispersion of light

• Addition of light

• Subtraction of light

• Refraction of light

The light which has the same colour as the colour of the opaque objects will reflected directly into our eyes, while the light of other colours will be absorbed by objects. This phenomenon is known as

• Dispersion of light

• Addition of light

• Subtraction of light

• Refraction of light

Diagram shows light colour addition. What colour is P?

• Magenta

• Yellow

• Cyan

• White

Diagram shows light colour addition. What colour is formed at X?

• White

• Black