Black
Red
Green
It reflects a radiation of b radiation which is a color green.
Light that hits the shirt absorbs most of the color and reflects another color. For example, light hits a your shirt. It absorbs all of your colors except one (red, orange, yellow, blue, indigo, purple) and reflects green. So what everybody (who can see color) will see is green.
Under a red spotlight, his jacket will not show up because it is red. His white shirt will appear red and his green trousers will appear black. This is because The red jacket is the same color as the light. His white shirt will turn red, since white reflects all colors, and since red is the only color, the white shirt reflects that color. His green trousers will appear black because there is no green that reflects off his trousers.
A light blueish green color... why do you care?
Because any pigmented shirt absorbs every color except what it reflects. The color it reflects is the color that appears. So a yellow shirt reflects yellow and appears yellow.
no colors is absorbed by a black shirt but instead it reflects all the colors in the spectrum of light while white shirt absorbs all the color in the spectrum of light.
White Light is made of all the colours of the spectrum (rainbow). If we look at something, say, green (like grass) it looks green to us because the chlorophyll in the leaves absorbs all the sunlight that lands on it with the exception of green light which it reflects. Therefore this green light that reflects into our eyes makes us see the grass as green. White objects, however, absorb no light and reflect all the colours back to us. As all the colours together make white light, we see the object (in your case, a T shirt) as white.
If the red light is pure red, and the plant has not pigments other than green, and there are no other light sources present, the plant will appear to not be lit at all. Colored light works with pigment that reflects it. Red light is reflected by red pigments, and green pigments reflect green light. The plant has green pigment and no green light to reflect, and the red light has no red pigment to reflect it. This means that no light will be reflected off of the plant and in theory, the only thing you will be able to see is the outline of the plant from the light reflected by other objects. In reality there is probably more pigments than green in the plant, and there are probably more light than red, so it will most likely overlap in a few places and appear a sort of gray.
A white shirt reflects light while a black one absorbs it.
kind of brownish
Yellow-green, or lime.
no, it reflects red light