Question

Charcoal appears black in color because it

A.)emits black-colored light.
B.)has a black colored pigment
C.)absorbs all wavelength of of light that falls on it
D.)reflects all wavelengths of light that fall on it

Answer 1

I think the answer is C but correct me if im wrong hope this helps :)

Answer 2

C. This is the idea of "black body radiation". Charcoal/carbon is a "perfect black body". Absorbs all radiation. There's a whole host of stuff about this in physics, including, I think, Planck's (Nobel Prize winner) black body radiation theory.