In the CIE 1931 Chromaticity Diagram, a Colour Lying on a Straight

question 4

Multiple Choice

In the CIE 1931 chromaticity diagram, a colour lying on a straight line joining two points on opposite sides of the perimeter can be formed by:

• A) A mixture of any three colours in the lower region of the diagram
• B) A mixture of the colours on the perimeter at the ends of the line
• C) A mixture of the colours at the nearest corners of the diagram
• D) None of these

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Definitions:

Psychophysics

The scientific study of the relationship between stimuli (which are physical) and the sensations and perceptions they produce in the observer.

Physical Energy

The capacity to perform work or to produce physical changes within the body or environment, stemming from physical or chemical resources.

Sensory Physiology

The study of how organisms perceive and respond to physical stimuli in their environment through sensory organs.

Constant Stimuli

A method in psychophysics used to measure the sensitivity of sensory systems by presenting stimuli of constant intensity but differing in duration or frequency.