An object that appears yellow under white light will have a tendency to
maintain its distinctly yellow appearance when bathed in yellow light.
It would look like a very, very, very, very yellowy orange.
The reason a black object is described as "a black object" is becasuse even under white light, where every color is available, the thing absorbs all of them, and doesn't reflect any color. Illuminating it with light of only a single color isn't going to change that. It'll still appear black.
White will appear slightly warmer or more yellowish under yellow light due to the way our eyes perceive colors. This is because the yellow light will mix with the white surface, creating a subtle yellow tint.
It's called "A Blue Object" because when light of many colors falls on it, it reflects the blue light toward your eyes and absorbs all the other colors, including yellow. So if yellow light is the only light falling on it, the light is all absorbed, none is reflected to your eyes, and the object appears black.
An illuminated object reflects light that came from somewhere else. A luminous object emitts its own light.
It would look like a very, very, very, very yellowy orange.
The reason a black object is described as "a black object" is becasuse even under white light, where every color is available, the thing absorbs all of them, and doesn't reflect any color. Illuminating it with light of only a single color isn't going to change that. It'll still appear black.
Blue appears black under a yellow light. For example if you have a blue car and you put a yellow light on it will appear black due to the absence of color. The light has nothing to reflect back.
Black
It's called "A Blue Object" because when light of many colors falls on it, it reflects the blue light toward your eyes and absorbs all the other colors, including yellow. So if yellow light is the only light falling on it, the light is all absorbed, none is reflected to your eyes, and the object appears black.
When shining a green object onto a yellow light, the green object would absorb most of the yellow light while reflecting the green wavelengths. This would make the green object appear even brighter and more vibrant due to the contrast created by the yellow light.
White will appear slightly warmer or more yellowish under yellow light due to the way our eyes perceive colors. This is because the yellow light will mix with the white surface, creating a subtle yellow tint.
Yellow light is made of primary colors red and green. Yellow objects absorb the blue light and reflect the red and green, so we see yellow. If I'm wearing a green shirt, the color reflected is Green. All others are obsorbed. Ta-da!
It's called "A Blue Object" because when light of many colors falls on it, it reflects the blue light toward your eyes and absorbs all the other colors, including yellow. So if yellow light is the only light falling on it, the light is all absorbed, none is reflected to your eyes, and the object appears black.
A green object is called "green" because that's the only color of light that it reflects to our eyes, while it absorbs any other light. If there's no green light shining on it, then there's nothing for it to reflect, and we would describe it as a "black" object under those conditions.
Dark green.A more descriptive answer:It depends on the exact spectra the light emits, not just what it looks to us.If the light combines red and green wavelengths, then the green object will appear green, because of the green wavelength. The object may have a yellowish tinge because of small reflection of the red wavelength.If the light is spectral yellow and not just red + green, then the green object will appear a much darker green maybe with a slight yellow or dark-yellow tinge because of, again, small reflection of dominant yellow wavelength.
An illuminated object reflects light that came from somewhere else. A luminous object emitts its own light.