What characterizes clear glass?

Clear glass is characterized by its smooth surface and minimal distortions, which enables light to pass through it with high clarity. This property makes clear glass an ideal choice for applications where transparency is essential, such as windows, display cases, or any situation where visibility is a priority. The smoothness of clear glass allows for an unobstructed view, enhancing its function and aesthetic appeal.

In contrast, options such as allowing no light through would describe opaque materials, not clear glass. A patterned or uneven surface would introduce distortions and reduce clarity, which is not representative of clear glass. Additionally, while clear glass may reflect some light, its primary function is to transmit light rather than primarily serve as a reflective surface. Thus, the defining characteristic of clear glass is its smoothness and low distortion, allowing for optimal light transmission.