Donate SIGN UP

Light

Avatar Image
harrylaer | 10:03 Tue 24th Aug 2004 | How it Works
8 Answers
does the coluor black reflect or absorb light?
Gravatar

Answers

1 to 8 of 8rss feed

Best Answer

No best answer has yet been selected by harrylaer. Once a best answer has been selected, it will be shown here.

For more on marking an answer as the "Best Answer", please visit our FAQ.
absorb
must reflect some or we couldn't see it
In that case it is not perfect black
are we talking about the colour black as in the q or the absence of light black??
In the paint world, black doesn't exist. It's a very very very dark blue.
A theoretical black object would absorb all visible light falling on it, and would therefore look like a total void, like the inside of a completely sealed unlit cave. Of course so called black object do reflect a little light. However black object, including theoretically perfect ones, re-rediate some of the light falling on them. At room temperature, this radiated light is in the infra red and thus invisible. As the temperature of the object rises, the peak of the range of frequencies of the light is shifted towards the blue end of the spectrum. So at about 600 Celcius an object will begin to glow a dull red. As it heats, the colour changes through orange, yellow, white, blue-white and into the ultra-violet.
Basically, Black absorbs and white reflects. As stated, in paints a true black is hard to find, most blacks are either greenish, blueish or greyish
If the question was, does black absorb heat.. then yes. Black vinyl car sets found in older cars.. OUCH !! on a hot sunny day

1 to 8 of 8rss feed

Do you know the answer?

Light

Answer Question >>