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What creates the difference between lit ridges and shadowed troughs in fabric folds?

Answer and explanation

Correct answer: The surface turning toward or away from the light

The governing concept is the interaction of light with three-dimensional form. A fold ridge turns toward the light and receives more illumination, while a trough turns away and receives less, producing a lighter value beside a darker one. Thus option A is correct. Cloth colour may influence the overall value, but it does not by itself create the ridge-and-trough pattern; paper texture and pencil length are unrelated.

Related tags

Fabric FoldsLight And ShadowDraperyTonal ModellingSketchingDrawing BasicsArt EducationClass 9 Mcq

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