Definition - What does Presentation Layer mean? The presentation layer is layer 6 of the 7-layer Open Systems Interconnection (OSI) model. It is used to present data to the application layer (layer 7) in an accurate, well-defined and standardized format. The presentation layer is sometimes called the syntax layer.
As shown in the next figure, an object is seen as black if it absorbs all colors of white light. A white object reflects all colors of white light equally. If an object absorbs all colors but one, we see the color it does not absorb. The yellow strip in the following figure absorbs red, orange, green, blue, indigo and violet light. It reflects yellow light and we see it as yellow. The eye also uses complementary colors in color vision.
Background Information. The different colors of visible light have different wavelengths. Violet light has the. shortest wavelength, has the most energy, and is closest to ultraviolet light. Red light has the. longest wavelength, has less energy, and is closest to infrared light. The other colors of visible. light increase in wavelength and decrease in energy as they get closer to red and infrared light. When you shine white light or sunlight on a colored object, the object will appear to be.