Quote:
Originally Posted by basjoos
White pigment doesn't pass light. it reflects light. If it passed light, it would be called translucent.
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Depends. A white substance may reflect from the surface, or (as with some plastics) the light may penetrate some distance before reflecting.
There's also the question of what "color" the white is in the UV spectrum. Consider flowers: bees see in the ultraviolet, so a flower that appears to be white or solid color to human vision often looks much different in UV. See for instance
Flowers in Ultra-Violet