What type of objects do not allow light to pass through?

• A. Transparent objects
• B. Translucent objects
• C. Opaque objects
• D. Illuminated objects

Answer: (C)

Opaque objects are materials that do not allow light to pass through them at all. When light strikes an opaque object, it is either absorbed or reflected, preventing any light from transmitting through to the other side. This characteristic distinguishes opaque objects from transparent and translucent objects.

Transparent objects allow light to pass through them easily, meaning we can see clearly through them, like clear glass. Translucent objects, while also allowing some light to pass, diffuse that light, so we cannot see clearly through them, such as frosted glass or wax paper. Illuminated objects, on the other hand, refer to objects that are being lit up but do not directly relate to the property of light transmission.

In summary, the defining trait of opaque objects is their complete blockage of light, making them the correct choice in response to the question.