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Which of the following is not a primary color in light?
Red
Blue
Green
Yellow
Yellow
In the additive color model of light, the primary colors are Red, Green, and Blue (RGB). Yellow is a secondary color formed by the combination of red and green light.
In the additive color model of light, the primary colors are Red, Green, and Blue (RGB). Yellow is a secondary color formed by the combination of red and green light.
Think of RGB as the 'alphabet' of light; just as you combine primary letters to make words, you combine primary light colors to make every color on your smartphone or television screen.
RGB (Red, Green, Blue) тАФ Remember: 'RGB is the Light's DNA'.
R+G=Y тАФ Red light combined with Green light produces Yellow light
R+G+B=W тАФ Mixing all three primary colors of light in equal intensity produces White light
The human retina contains three types of cone cells sensitive to different wavelengths of light, peaking at red, green, and blue. By mixing these three primary colors in varying intensities, all other colors in the visible spectrum can be reproduced, a process known as additive color mixing.
The primary colors of light (Additive) are Red, Green, and Blue.
The primary colors of pigments (Subtractive) are Cyan, Magenta, and Yellow (CMY).
Yellow is formed by the overlapping of red and green light spectra.
White light is a polychromatic light composed of all visible wavelengths.
Additive color mixing is the basis for all modern digital display technologies (LED, OLED, LCD).
Subtractive color mixing (paints/inks) behaves differently than light, often causing confusion for students.
Digital screens and monitor displays
Stage lighting and theatrical color projection
Yellow is a secondary color in the light spectrum, created by adding Red and Green.
Option A, B, and C are incorrect because they represent the fundamental primary colors that cannot be created by mixing other light sources.
D is correct тАФ Yellow is a secondary color in the additive light color model, formed by the superposition of red and green light.
Always differentiate between 'Additive' (Light: RGB) and 'Subtractive' (Pigments: CMY). In exams, remember that light adds up to white, while pigments add up to black (or dark brown).
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