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Red and blue are at opposite ends of the visible light spectrum, red being of low frequency, and blue being of high frequency. Sunlight contains frequencies across the whole frequency range, which appears white. An object that appears white reflects all frequencies.
A red object appears red because it reflects red (low frequency) light, and absorbs all other colours. Blue light contains only high frequencies. If you are in a darkened room, lit only by blue light, white objects will appear blue because they are reflecting the blue light, and no other frequency is available.
But a red object absorbs high-frequency (blue) light, and since this is the only light in the room, it does not reflect any light. Objects that do not reflect any light appear black. Some objects appear black even in sunlight, because they absorb all frequencies and do not reflect any.
So to answer the question, when you have a red object that is lit only by blue light, it will appear black.
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What colour will a green object be if only blue light was shone on it?
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.
If you shine a blue light on a blue object what color will the object turn?
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.
What colour would a yellow object be if only a blue light was shone on it?
Purple, Cuz aliens dont exist
What colour will a Green object appear if only Blue light is shone on it?
Black I think
What colour would a blue object look like if a yellow light were shone on it?
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.
What colour would a white object be if a blue light shone on it?
blue
What colour will a green object be if only blue light was shone on it?
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.
If you shine a blue light on a blue object what color will the object turn?
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.
What colour would a yellow object be if only a blue light was shone on it?
Purple, Cuz aliens dont exist
What colour will a Green object appear if only Blue light is shone on it?
Black I think
Can object reflect both red and blue light?
On stage in a theatre red light shines and clothes appear red, blue light is shone an clothes appear blue, what colour are they?
What colour would a blue object look like if a blue light were shone on it?
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.
What colour would a blue object look like if a yellow light were shone on it?
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.
Why do red object's look black in blue light?
Red and blue are primary colours therefore they do not contain any other colour. When a blue light is shone onto a red object, all the blue light is absorbed by the red object, and as no red light is being shone for the red object to reflect, no light will be reflected from it and it will appear to be black. It is important to remember that physical colours will only reflect it's light colour equivalent. All other colours are absorbed. So red will reflect red, green will reflect green, and red will absorb green and so on.
What happens when white light strikes a red opaque object. What about blue light. red light. violet light?
When white light strikes a red object, the object would appear red. The object would have reflected the red light within the white light while all other colours would have been absorbed. When blue light strikes a red object, it would appear black as there is no red light in blue light as it is a primary colour. As a result, the blue light would be completely absorbed by the red object. So no light would be reflected from the object. When violet light strikes a red object, it would appear red, as violet is a combination of blue and red light. The blue light would be absorbed while the red light would be reflected. It is good to learn and revise the light spectrum and primary and secondary light colours. Primary light colours are: Red, Green and Blue Secondary light colours are: Yellow, Cyan and Violet The combinations are: Red + Green = Yellow Green + Blue = Cyan Blue + Red = Violet (or Magenta depending on how you have been taught)
What colour would you see if you shone a white light through a blue filter?
I think you would see blue.I say that, because I'm thinking to myself: "WHAT MAKES THE FILTER BLUE ? ! ? !"
What colour will a white object appear if only red light was shone on it?
Red. The colour of an object is determined by the wavelengths of light it reflects and absorbs, and a white object is one that reflects light across the visible spectrum. If only red light shines on it, it will reflect that light. In contrast, a black object appears black because it doesn't reflect any visible wavelengths, so would still appear black. Any object that doesn't reflect the wavelength of light you're using (eg blue objects) would also appear black because it isn't reflecting any light.
