The statement that "light cannot pass through dark objects" is not entirely accurate. The ability of light to pass through an object depends on its opacity, which is the degree to which the object blocks the transmission of light. Objects can be categorized as transparent, translucent, or opaque based on their opacity.

Transparent Objects: Transparent objects allow light to pass through them with minimal absorption or scattering. Examples include clear glass, water, and air. When light hits a transparent object, most of it passes through, allowing us to see the object clearly.

Translucent Objects: Translucent objects allow light to pass through them but scatter the light as it passes. This scattering of light often results in a blurry or frosted appearance. Examples of translucent objects include frosted glass, thin paper, and some plastics. While some light can pass through translucent objects, the objects themselves may not be clearly visible.

Opaque Objects: Opaque objects do not allow light to pass through them. This means that when light hits an opaque object, it is completely blocked, and no light is transmitted through it. Examples of opaque objects include wood, metal, solid rock, and most painted surfaces. These objects appear dark or black because no light is reflected or transmitted.

So, while it's true that opaque objects block light completely and appear dark, it's not accurate to say that "light cannot pass through dark objects." Dark objects simply refer to objects that do not allow light to pass through them due to their opacity.