if a blue object is placed in front of the screen, what color will it be? explain?
something has to be missing here. Is there some light in the room?
a red light source and green light source shine on a white screen. so
if a blue object is placed in front of the screen, what color will it be? explain?
A blue object appears blue, because it absorbs all wavelengths except those in the blue area of the spectrum (subtracting the other wavelengths). Do either the green or red light overlap this portion of the spectrum? If not, what color would it be?
http://www.glenbrook.k12.il.us/gbssci/phys/Class/light/u12l2d.html
I hope this helps a little more. Thanks for asking.
it would be brown
If a blue object is placed in front of a screen, the color you see will depend on the properties of the screen and the type of light being emitted.
Screens can display different colors by using a combination of red, green, and blue light pixels (commonly known as RGB). When these three primary colors are mixed together at varying intensities, they can produce a wide range of colors.
If the blue object is placed in front of a screen that emits a full spectrum of colors, the blue light from the object will interact with the red and green lights emitted by the screen. This interaction will result in the perception of a different color.
For example, if the screen emits a lot of red light and a moderate amount of green light while the blue object is in front of it, the combination of blue light from the object and the red and green lights from the screen may result in the perception of a darker shade of purple. This is because blue light mixed with red light creates purple, while blue light mixed with green light creates a shade of cyan.
However, it's important to note that this is a simplified explanation, and the actual color perception can be influenced by various factors such as the specific shade of blue of the object, the intensity and spectrum of light emitted by the screen, and the lighting conditions in the surroundings.