Green objects reflect all green wavelengths of visible light, so if it is only under red light, it has no colors to reflect and appears black.
Green light - Green, White light - Green, Red light - Black
In red light, a green apple would appear dark or black because red light contains wavelengths that are opposite to green on the color spectrum. This causes green objects to absorb the red light and reflect very little, resulting in a dark appearance.
Green would appear black or very dark under magenta light because magenta light contains no green wavelengths to reflect back. Therefore, without green light to reflect, green objects would not be visible and would appear dark or black.
The green object will appear black because it will not reflect any of the blue light shone on it. Green objects primarily absorb blue light, so without any green or red light present, the object will appear dark.
While the ball would still be green it will appear black. Anything green absorbed all colours except green. The green light is reflected to your eyes which makes it look green. Thus in red light (with no green in it) the red will be absorbed and no green light can be reflected to your eyes so the ball will look black.
Green light - Green, White light - Green, Red light - Black
In red light, a green apple would appear dark or black because red light contains wavelengths that are opposite to green on the color spectrum. This causes green objects to absorb the red light and reflect very little, resulting in a dark appearance.
Green would appear black or very dark under magenta light because magenta light contains no green wavelengths to reflect back. Therefore, without green light to reflect, green objects would not be visible and would appear dark or black.
No
The green object will appear black because it will not reflect any of the blue light shone on it. Green objects primarily absorb blue light, so without any green or red light present, the object will appear dark.
Green objects would appear green and red objects would appear very dark.
While the ball would still be green it will appear black. Anything green absorbed all colours except green. The green light is reflected to your eyes which makes it look green. Thus in red light (with no green in it) the red will be absorbed and no green light can be reflected to your eyes so the ball will look black.
Red light creates monochromatic color : all objects will appear in shades of red from brightest (white becomes bright red) to darkest (very dark colors appear dark red or black). So something green would not necessarily appear black, but a shade of red corresponding in hue to its grayscale equivalent.
It would appear black because the object would not reflect any of the colors of light back.
black
Dark green leaves absorb mainly blue and red wavelengths of light for photosynthesis, utilizing the chlorophyll pigments to capture light energy and convert it into chemical energy. These pigments are less efficient at absorbing green light, which is why plants appear green to our eyes.
The red light would be absorbed by the green object and the object would appear dark. The green object reflects green light and absorbs other colors.