What kind of objects materials that absorb light?

Answer 1

First, you need to define "light". Visible light only? Up into the ultra-violet? Down into infrared? Many filters wil block and/or reflect wavelengths above or below a certain cutoff point, while passing waves away from that point. As a for instance, a red filter will pass wavelengths from around 550 nm and longer, while it blocks anything shorter than 550. A green filter is a "notch" filter, in that it will only pass wavelengths from around 550 to around 500 nm. At the other end, a blue filter will block anything longer than about 500 nm, and pass shorter wavelengths, possibly up into the ultraviolet range.
That being said, nothing in this universe is perfect. No surface will reflect all wavelengths that land on it; any reflective surface will have some losses, both through what it allows to pass, and what it absorbs into itself, generally turning into heat. On the other end, the closest thing you might find to a "surface" that could absorb all light that falls on it would be a black hole.

Answer 2

something black and solid (not porous) eg. a black hole, black leather

Answer 3

All materials absorb (and emit) light. Characteristic wavelengths ("color" if they happen to be in the visible range) identify the material.

Answer 4

No material reflects all light. Silver is pretty close, which is why it is used for mirrors. As far as absorbing, porous black materials do the best job.

Answer 5

Opaque materials.

Answer 6

what kind of objects that absort light

Answer 7

black body

Answer 8

Co2