PINK
Black, because the blue light would be absorbed into the object's pigment and as there is no green light to reflect, the object would appear black.
The green pigment chlorophyll is responsible for the colour of plants.The pigment is found in organelles called chloroplastswhich are found in most plant cells (particularly in the leaves and stems).The pigment is green in colour and reflects green light, giving the plants their green colour.
The object would be black, because red cannot reflect green light so no colour is reflected of the object.
A green object would look blaack in a red light because coloured objects absorb all colours except the colour they are, so a green object absorbs 6 colours (red, orange, yellow, blue, indigo, violet) and reflects 1 (green). In this situation, there is no green light to reflect and it can't reflect other colours, so it looks black. :)
You can diffract the light reflect from the object and see what range of spectrum is absorbed and what is reflected. It is to mentioned, human had trichromatic vision. We base our vision of colour from the portion of red blue and green. The real colour in spectrum is however continue of colour from red to violet. By having only 1 colour of light reflect, the object had to specifically absorb exact the other 2 portion of light human can see which is extremely rare for natural objects without specific design to absorb light at exactly cover the other 2 spectrum human can see. So it is most objects would reflect more than one colour of light.
Yellow as white objects reflect the whole visible light spectrum. So the white ball would reflect the yellow light.
A pigment that transmits all wavelengths of visible light would appear colorless or clear to the human eye. This means it does not absorb or reflect any specific colors, resulting in a lack of color perception.
The red object would appear red under a red light because objects primarily reflect the color of light that is shining on them. Since red light contains mainly red wavelengths, the object would still reflect red light and appear red.
Green trousers would appear black when exposed to red light because the red light does not contain any green wavelengths to reflect off the trousers. Without any green light to reflect, the trousers will appear black in the presence of red light.
The object would appear black because it would not reflect any of the blue light shining on it, and blue light alone cannot activate any yellow pigments to reflect back a different color.
A red ball would appear black in blue light because red objects absorb blue light and reflect little to no light of that wavelength. This causes the red object to not reflect any light back to our eyes, leading us to perceive it as black in blue light.
A green object absorbs all light except green which is reflected by the pigment. White light is made up of all colors and all except green are absorbed; only green is reflected. If a red light is the only one illuminating a green shirt there is no green to reflect so the shirt will look black.