Learning Objectives.
Recognise spectral reflectance curves of metameric samples.
Compare the terms metamerism and colour constancy.
Appreciate the importance of each in the textile industry.

Questions.
1. Does the graph (link (i) below) indicate the presence of metameric samples?
2. Explain your answer to Question 1.
3. Discuss the fundamental reasons for metamerism.
4. Define a metameric pair
5. Give 2 instances where metameric pairs might occur in textiles.
6. Follow Link (ii) below and attempt the visual colour matching investigation.

Link (i).
Metamerism Reflectance Curve Question

Link (ii)
Visual Colour Matching Experiment