Colours of light

What is meant by a continuous spectrum of light?

• The colours of light that are made by mixing primary colours

• The colours of light that are mixed to produce secondary colours

• The different colours contained within white light

Where could you see a spectrum of light?

• In a shadow

• In a rainbow

• In a reflection

What is the order of the colours in the rainbow after Red and Orange?

• Indigo

• Blue

• Green

• Violet

• Yellow

What is the name of the process of splitting up white light using a prism?

• Dispersion

• Reflection

• Absorption

• Transmission

Organize these options into primary and secondary colours of light

Groups:

(a) Primary colours

,

(b) Secondary colours

• Cyan

• Yellow

• Blue

• Magneta

• Green

• Red

Match the following secondary colour with the primary colours mixed to make it

• Red and Green

• Magenta

• Blue and Green

• Yellow

• Red and Blue

• Cyan

What colour is produced when red, blue and green light are combined?

• Black

• White

• Yellow

Which type of photoreceptor cells detect colour?

• Rods

• Cones

• Cornea

If your brain receives impulses from cones that detect red light and cones that detect blue light what colour will you see?

• Cyan

• Purple

• Yellow

• Magenta

If your brain receives impulses from cones that detect red light and cones that detect green light what colour will you see?

• Cyan

• Brown

• Yellow

• Magenta