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In which situation may a mixture appear darker than expected?

Answer and explanation

Correct answer: When several dark transparent layers overlap

The governing concept is cumulative absorption in transparent layers. Each dark layer absorbs part of the light and reflects the remainder; when several such layers overlap, less light returns from the painted area, so it appears darker and often richer than a single layer. More white generally creates a lighter tint, extra water usually makes a wash paler, and light paper can increase brightness. Thus option D is the correct explanation.

Related tags

Transparent LayersDark ValueOverlapLight AbsorptionColour MixingColour TheoryArt EducationClass 9 Mcq

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