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What is the disappearance of a boundary due to similar object and background values called?

Answer and explanation

Correct answer: Lost edge

The governing concept is edge variety based on value relationships. When an object and its background have nearly the same lightness or darkness, the separating contour loses contrast and seems to disappear; this is called a lost edge. Option B is correct. A hard edge remains sharply visible, an axis line indicates direction or symmetry, and a contact shadow is the dark area where the object meets the supporting surface.

Related tags

Lost EdgeValue RelationshipsEdge ControlStill LifeStill Life DrawingDrawing BasicsArt EducationClass 9 Mcq

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