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Why is gradual tone necessary on a cylinder instead of equal straight bands?

Answer and explanation

Correct answer: To show the turning of the curved surface

The governing concept is form modeling through value gradation. A cylinder has a curved surface, so the amount of light changes progressively as the surface turns away from the light source. Option C is correct because gradual tone communicates this turning and creates a rounded, three-dimensional appearance. Equal straight bands interrupt the form and may make it look flat or segmented; they do not change colour, remove cast shadow, or merely hide paper texture.

Related tags

Pencil ShadingCylinder ShadingTonal GradationCurved SurfaceForm RenderingDrawing BasicsArt EducationClass 9 Mcq

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