Which finish is a dull, lusterless surface with no shine or gloss?

• A. Direct Lighting
• B. Dome
• C. Fiberglass
• D. Flat Finish

Answer: (D)

Understanding how finishes affect light on a surface helps explain why a dull, non-reflective look is called a flat finish. A flat finish is matte and has no shine because it scatters light rather than reflecting it, producing a completely non-glossy appearance. This is different from finishes that reflect light to create shine. The other terms refer to lighting, a shape, or a material, not to the surface’s optical property. So the flat finish best describes a dull, lusterless surface with no gloss.