Absorption

Quick Question:

Something appears to look violet, because the material absorpts every spectral colors with exception of violet of course.

So why is material with violet surface heating-up faster than a material with yellow surface?

Explanation from someone not into physics:

Recall that lower wavelength connotes higher frequency. And that higher frequency entails higher energy. Yellow is at a higher wavelength (~600 nm, perhaps) than violet is (~400 nm). So a violet object is heating up faster because it has higher energy than a yellow object.