Where is core shadow usually seen on a sphere?
Answer and explanation
Correct answer: In the turning area away from light
The governing concept is the shading structure of a three-dimensional sphere. Light first produces a highlight on the directly illuminated area; as the curved surface turns away from the light, it enters the darker transition called the core shadow. Therefore, option A is correct because the core shadow lies on the form itself, in the turning region away from the main light. Option B is incorrect because the highlight is the brightest area, not the darkest one. Option C confuses form shadow with cast shadow: a cast shadow falls on another surface, while core shadow remains on the object. Option D is unrelated to the lighting process. Observing the light direction and the sphere’s curved turning point helps locate it accurately.
Frequently asked questions
What is the correct answer to this question?
In the turning area away from light
Why is this the correct answer?
The governing concept is the shading structure of a three-dimensional sphere. Light first produces a highlight on the directly illuminated area; as the curved surface turns away from the light, it enters the darker transition called the core shadow. Therefore, option A is correct because the core shadow lies on the form itself, in the turning region away from the main light. Option B is incorrect because the highlight is the brightest area, not the darkest one. Option C confuses form shadow with cast shadow: a cast shadow falls on another surface, while core shadow remains on the object. Option D is unrelated to the lighting process. Observing the light direction and the sphere’s curved turning point helps locate it accurately.
Which subject and chapter does this question cover?
This is a Class 9 Art Education question. Chapter: Elements of Art. Topic: Form.
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