It will look red.
White light is made up of a spectrum of many colours.
The primary colours are red, green and blue.
An object (in white light) appears yellow because it reflects red and green light but absorbs blue light.
In red light, the same object will simply reflect the red light. Since there is no green light, the object will appear red. (A mixture of red and green gives yellow)
In blue light, a yellow object would appear dark or black because yellow absorbs blue light and reflects other colors. This means that the object wouldn't reflect any of the blue light, making it appear dark.
It would look like a very, very, very, very yellowy orange.
A yellow object under a yellow light will appear very bright and vibrant, as the object will reflect the light in a consistent color. This can potentially make it difficult to differentiate between the object and the surrounding light source.
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.
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.
Black
Black
In blue light, a yellow object would appear dark or black because yellow absorbs blue light and reflects other colors. This means that the object wouldn't reflect any of the blue light, making it appear dark.
It would look like a very, very, very, very yellowy orange.
A yellow filter would absorb blue light, making a blue object appear black in a black-and-white photograph.
A yellow object under a yellow light will appear very bright and vibrant, as the object will reflect the light in a consistent color. This can potentially make it difficult to differentiate between the object and the surrounding light source.
A green object would appear dark or almost black under yellow light. This is because yellow light consists of wavelengths that are primarily in the yellow part of the spectrum, and it does not contain much green light. Therefore, the green object would not reflect much light back to our eyes, resulting in its dark appearance.
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.
You could use a yellow filter to absorb blue light, making the blue object appear black since no blue light would reflect off of 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.
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.
Even though youv'e given it the name "Yellow", the object is only yellow when there's some yellow light shining on it. You see, it absorbs all other colors of light, and only yellow light bounces off of it. That's why the light from that object that enters your eye is yellow light, and that's why you describe the object as looking "yellow". If there's no yellow light shining on the object, it looks black.