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Which wavelength must the light contain and the object reflect to appear white?
Wiki User
∙ 14y ago
Refer to the EM spectrum to find exact answer about this question. Usually wavelengths are listed at bottom and frequency on top of the spectrum. Gamma rays have the smallest wavelength.
Wiki User
∙ 14y ago
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How do colored objects look under colored lights?
If the light is or contains the colour the object it is striking, then the object will appear to be the colour it originally is. If the light is not or does not contain the colour the object it is striking, then object will appear black. This is because an object will only reflect the light that is the same colour as it, all other light is absorbed. For example: Red, yellow, magenta, and white light will make a red object appear red as they all contain red light. Blue, green and cyan light will make a red object appear black.
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.
What color will an object appear that reflect red and yellow light frequencies?
Orange
What color will a red object appear under green light?
It would appear black because the object would not reflect any of the colors of light back.
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.
How do colored objects look under colored lights?
If the light is or contains the colour the object it is striking, then the object will appear to be the colour it originally is. If the light is not or does not contain the colour the object it is striking, then object will appear black. This is because an object will only reflect the light that is the same colour as it, all other light is absorbed. For example: Red, yellow, magenta, and white light will make a red object appear red as they all contain red light. Blue, green and cyan light will make a red object appear black.
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.
Why the object appear when you put the object in front of mirror?
light bounces off an object and on to the miorror surface where it is then reflected at the same wavelength as it was casted on to there with
What color will an object appear that reflect red and yellow light frequencies?
Orange
What color will a red object appear under green light?
It would appear black because the object would not reflect any of the colors of light back.
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 is true about an object that looks red?
For an object to appear red, it must reflect only red light. All other colors are absorbed.
What will happen to an object wavelength as the object move toward you?
The wavelength will be shorter!
Can an object vibrate at the wavelength of light?
No object can vibrate at the wavelength of light. wavelength of light depends on the intensity of light and electron movements.
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.
What color is an object when it reflects blue?
Assuming that the light you are shining on the object is white, then the object is also blue. Objects appear a certain color because they reflect that color to our eyes and the rest of the colors in the light are absorbed by the object.
Can gray rock reflect light?
If an object doesn't reflect light, it will appear perfectly black. So yes, in a sense, a rock does reflect light, since this is what enables you to see it. It is, however, a poor reflector, compared with, say, water, or a mirror. If an object doesn't reflect light, it will appear perfectly black. So yes, in a sense, a rock does reflect light, since this is what enables you to see it. It is, however, a poor reflector, compared with, say, water, or a mirror.
