00:01
Okay, so for this question, we actually have multiple choice questions.
00:03
So we have 10 multiple choice questions regarding colour.
00:07
And the colour that you see, so question one, the colour that you see is the colour that is reflected.
00:11
That's a reflected.
00:14
In order for that colour to get to your eyes, it must come off the object, and unless the object is itself luminous, it won't give off that light itself.
00:24
So that is simply a reflected light.
00:27
Question two, if a material absorbs or frequency with light waves, except green, what colour will be perceived by the observer? and that is going to be a as well, that is green.
00:39
So, leaves, chlorophyll, chloroplasts, that reflects green light, and that is why leaves look green.
00:46
Question three, if all light waves are reflected off a medium, then what colour will be perceived? well, the combination of all the wavelengths of visible light is white lights.
00:57
Me be white.
01:00
Question four, if all light waves are absorbed by a medium, then what color will be perceived? well, if none of those light rays, light wave, sorry, reach your eye, then you're going to see, well, just black.
01:14
Let's make be black.
01:17
It's the absence of light.
01:20
Question five, what part of the visible spectrum has the highest energy? so the highest energy is going to be the violet part of the spectrum.
01:29
Violet.
01:32
That's why, so just beyond the violet part of the spectrum, you get ultraviolet and that's actually so energetic, it's ionizing.
01:40
And that can be dangerous for your health, dangerous for your skin especially...