00:01
If you see a substance as orange, it's because it's reflecting back mostly in that orange color.
00:11
It's mostly reflecting back orange photons.
00:16
However, in terms of absorption, what that also means is that the plants or any object is absorbing most its complementary color.
00:29
So if it is reflecting orange, it's actually absorbing its complementary color the most.
00:57
And if you were to look at a color wheel, the complementary color, the one that's opposite orange, is blue.
01:05
So it's actually absorbing a lot of blue and reflecting a lot of orange.
01:09
Now, we can figure out the energy that these particular photons have.
01:17
And so 455 nanometers is in that bluish range.
01:25
And so how much energy does that have? well, we know that the wavelength is 455 nanometers.
01:36
And when we do calculations, we can't use.
01:40
Nanometers and our numbers, we're going to convert that to meters.
01:45
And so to convert that to meters, we can take a look at the fact that one times 10 to the nine nanometers is a meter...