Yellow.
yellow.
It appears black. A green pigment can only reflect green light and red light is a primary colour, that is it contains only red.
The red light should blink for three minutes, then turn off for three minutes. Then it should repeat the cycle. That is how you know it is working. If the red light stops blinking completely then the unit needs to be replaced.
When red light and green light shine on red curtains, the red curtains will appear red. This is because objects appear a certain color based on the wavelengths of light they reflect. Red objects reflect red light and absorb other colors, so even when green light is shone on them, they will still primarily reflect red light, maintaining their red appearance.
Green is not a primary color, it is a combination of yellow and blue.
yellow light
yellow light
It depends on whether you are talking about pigments (paints) or colours (light). Red + Green paint = brown Red + Green light = yellow.
To make green appear black, shine red light on it. Green absorbs red light, so when red light is shone on green, the green will appear black.
yellow.
Yellow
In terms of the light colour spectrum, yes. Red and green light mixed will produce a yellow light. Red and green paint however will create either brown or black.
Change the ratio of red to green.
Plants are green because the reflect green light. They do not use green light, they use red light to make food. Some plastic mulches are red to reflect red light onto plants to make them grow more.
A green light makes a red object appear black, because red objects absorb green light and do not reflect any visible light back.
light green
Yes, you can