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How may a neutral grey surface appear under blue light?

Answer and explanation

Correct answer: Cooler

The governing concept is that illumination modifies perceived colour. A neutral grey surface reflects the blue component of blue light, so it may look cooler or slightly bluish than it does under neutral white light. It will not normally become pure red or warm orange, and it need not remain completely unchanged. Thus option A correctly describes the likely directional shift rather than an absolute colour transformation.

Related tags

Blue LightCool AppearanceGreyColour PerceptionWarm And Cool ColoursColour TheoryArt EducationClass 9 Mcq

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