Why would red absorb the most heat out of all the primary colours??

Question

Red was compared to yellow and blue and it seems that red absorbed the most heat instead of blue as predicted.

Answer 1

not to sure as to why, but my guess would be the fact that the less something reflects the more heat it will generate... but again... i woulda guessed blue woulda been hotter (unless its a light blue)

& obviously black would absorb the most heat.....

Answer 2

Remember that if you're seeing the color that's the color that was NOT absorbed

if white light hits something and everything but red is absorbed(meaning it appears red)then the object absorbed all the higher energy light

Answer 3

To expand on Matty's answer...

Black, of course, absorbs the most energy (heat) while white the least as a white object reflects all (most) of the energy that hits it away.

So, take black (absorbs most) and reflect away the least energetic waves (red) and you will have "almost-black" or still a good energy absorber.

Still another way to look at it would be with numbers (illustration only - the numbers don't mean anything in particular): Blue (energetic) is 50%, yellow 35% and red 15% together, they make black absorbing 100%.

If the object reflects the red light, then you're still left with 85% whereas if it was blue, you'd only have 50% energy absorbtion.

Answer 4

because red is at the lowest level in the visible light spectrum.. before red is infra red witch i p**p all over every day

Answer 5

Because when exposed to a full spectrum light source. ie: the Sun, it not only absorbs the radiant energy but the infrared light wavelengths as well.