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Which condition is necessary for reliable comparison of tertiary-colour samples?

Answer and explanation

Correct answer: Same lighting same paper and dry condition

The governing concept is controlled observation. Colour appearance changes with the light source, the reflectance and colour of the paper, and the moisture of a sample. Using the same lighting and paper, then comparing samples after they are dry, keeps these variables consistent. Different conditions can create apparent differences that come from the test environment rather than the pigments. Labels help identification but do not control perception. Therefore, option D is necessary.

Related tags

Tertiary ColoursColour ComparisonLightingPaper And MoistureColour TheoryArt EducationClass 9 Mcq

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