Observation

This question was well attempted by the candidates who showed good understanding of colour theory. However, few candidates could not give the required responses and this made such candidates to score poorly in the question. Some of the following are responses expected from the candidates:

(a)  -     it is the sensation produced by waves of decomposed light upon
optical nerves.
-     It is the visual sensations produced upon the retina by light waves of different lengths.
-     It is is the impression as seen by the eyes due to the decomposed waves of the light rays.
-     it is the effect produced on the eye by the different wavelengths of light.
-     Colour may be described as an impression or effect formed on a part of the eye called retina by light or rays.

(b)
Hue
it is another name for colour which distinguishes one colour from the other, e.g. yellow from red, blue from green etc.
Chroma
This denotes the purity of colour i.e. strength, intensity or saturations.

(c)  Complementary colours
These are any two colours, which lie directly opposite each other on the colour circle, and when mixed together will produce grey or neutral colour.
Advancing Colours
They are dominant colours that tend to be warm, such as red, red-violet, orange, yellow and yellow-orange, which appear as coming (advancing) towards the viewer.
Discordant Colours
These are the colours, which are not pleasant to the viewer’s eyes when used together

Monochromatic colour
A colour scheme that consisting of the tints and shades of one colour.

Receding colour
They are the less dominant colours that tend to be cool such as green, blue-green, blue and blue-violet, which make a space to be wider because appear more distant than they actually are.