If the pigment in the rose is pure red, the rose would appear black. However, few real objects are pure primary colours, so the likelihood is that the rose would not be completely black.
The light shone through the crack in the wall.
the color that is opposite of light blue is dark blue.
BLACK because the apple absorbs the blue light and there would be no light to reflect.
Black
Mixing red and blue light would give purple light. This is because red and blue light are at opposite ends of the visible light spectrum, and when combined they create a color between them.
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.
blue
When blue light is shone on a white surface, the surface reflects the blue light while absorbing other colors present in the light spectrum. This selective reflection results in the perception of the white color.
The blue sky would appear green under green light because the green light would dominate the color seen by our eyes. The color of the sky is determined by the light that is reflected off of it, so when green light is shone on a blue sky, the green light will be the dominant color that is reflected.
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.
Blue. That's why people call it a "blue surface" ... because any other color of light that hits it is absorbed, and never scattered or reflected to your eye.
The light shone through the crack in the wall.
A blue object appears blue because it absorbs most colors and reflects blue light. However, when a red light shines on a blue object, the blue object would absorb the red light and reflect blue, so it would still appear blue.
The object will appear to be blue. However, the object would be indistinguishable from an object that reflects all colors of light. If yellow light were shone on an object that reflects only blue wavelengths, the object would appear to be black.
in blue light a apple is black !
You would get a greenish color when mixing light blue and yellow.
When lights of any two primary colors are shone on a white object, the object will appear to be a secondary color that is created by mixing those two primary colors together. For example, red and blue light will make the object appear purple, red and green light will appear yellow, and blue and green light will appear cyan.