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Which sample is most useful as a control in a colour-mixing experiment?

Answer and explanation

Correct answer: An unchanged sample of the base colour

The governing concept is comparison with a control or reference sample. An unchanged sample of the original colour provides a fixed baseline, so the observer can judge exactly how hue, value or saturation changed after mixing. Thus option A is correct. The darkest or muddiest sample is only an experimental result, and an unlabelled sample cannot support reliable comparison or identification.

Related tags

Control SampleReference ColourExperimentComparisonColour MixingColour TheoryArt EducationClass 9 Mcq

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