blue
A lemon would appear green under green light because the object reflects the color of light that it does not absorb. In this case, a lemon's yellow color would absorb all other colors except green, which it would reflect.
You would see that the lemon appears yellow when a green light is shined on it. Yellow is the color that the lemon reflects back to your eyes.
Green.
White light minus green light would appear as a purplish color. This is because when green light is removed from white light, the remaining color components combine to create a mix of blue and red light, which results in a purplish hue.
mix a little light green with a bit of yellow
Green.
The red object would appear black because it would not reflect any of the green light shining on it. Green light is the complementary color of red, meaning the object would absorb all the green light and not reflect any color back to our eyes.
yellow-green
Green light - Green, White light - Green, Red light - Black
it would appear black.
Chlorophyll primarily reflects green light, which is why plants containing chlorophyll appear green to our eyes. This pigment absorbs light in the blue and red spectrum for photosynthesis, while reflecting green light.
The color yellow in a lemon comes from the reflection of yellow wavelengths of light. The lemon absorbs most of the other colors in the light spectrum and reflects the yellow light, giving it its characteristic color.