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Even with similar contours, what will clarify the material difference between shiny metal and matte plaster objects?

Answer and explanation

Correct answer: Sharpness of reflections and tonal transitions

The governing concept is the visual description of material through reflected light and edge quality. Shiny metal usually produces sharper, more definite highlights and stronger, quicker tonal changes, whereas matte plaster diffuses light and shows softer transitions. Thus option C gives the relevant evidence even when contours are alike. Size, cast-shadow length, and a central axis describe form or construction, not surface material by themselves.

Related tags

Object ObservationMaterial QualityMetalPlasterReflectionsDrawing BasicsArt EducationClass 9 Mcq

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