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How should the transition from light to shadow appear on a sphere?

Answer and explanation

Correct answer: Gradual and smooth

The governing concept is tonal gradation on a curved form. Because a sphere turns gradually away from the light, its surface receives progressively less illumination, so the value should move smoothly from highlight through middle tone to core shadow. Therefore, option A is correct. A hard boundary belongs mainly to a cast shadow or sharp edge; only two tones or no transition would make the sphere look flat rather than rounded.

Related tags

Pencil ShadingSphere ShadingTonal GradationLight And ShadowDrawing BasicsArt EducationClass 9 Mcq

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