The reason that a surface appears darker when wet has to do with
A)the darkness of liquids.
B)conversion of light to lower frequencies.
C)absorption of multiply-reflecting light inside the wet region.

Question

Quizplus · Accepted Answer

When light hits a wet surface, it is partly reflected and partly absorbed. The absorbed light then undergoes multiple internal reflections before it is either re-emitted or absorbed completely. This results in a significant portion of the light being trapped within the wet region, leading to a reduction in the amount of light that is reflected back to the viewer. As a result, the surface appears darker when wet compared to when it is dry. This is especially true for rough or porous surfaces where more light can be trapped due to the presence of microscopic crevices and irregularities. The darkness of liquids is not relevant in this context, and there is no direct conversion of light to lower frequencies involved.

The Reason That a Surface Appears Darker When Wet Has