If form has correct dimensions but same value on surface what conclusion follows?

Illusion of volume is weak

A form must suggest not only correct dimensions but also volume and the way light falls across its surface. Value means the degree of lightness or darkness. Differences in value help the eye judge which plane faces the light, which plane turns away, and where the object curves or recedes. Without such variation, a solid object may look flat even if its proportions are accurate.

The question says the form has correct dimensions but the same value across its surface. This means the structure may be measured correctly, yet the illusion of volume is weak. Therefore option A is correct. The result does not prove that the form is complete, that colour temperature is correct, or that a pattern is strong; those are separate visual concerns.

This is a Class 10 Art Education question. Chapter: Fundamentals of Visual Arts. Topic: Elements of Art.