I would be red.
i know mate and stop using this its bad
An object that appears yellow under white light will have a tendency to maintain its distinctly yellow appearance when bathed in yellow light.
blue
It would look like a very, very, very, very yellowy orange.
The light is necessary when you are using a microscope because if you don't have the light turned on, then the object or specimen you would like to examine won't be showing up. The light makes you have the capabiltiy to see what your object looks like under the microscope, and if your light isn't being used, then you will not see your object, probably only darkness!!! (Hope this helped)
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.
The object would be black, because red cannot reflect green light so no colour is reflected of the object.
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.
red
black
It would look cyan because the colors would be filtered.
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.