Q Mintz is one of the largest and fastest-growing online platforms dedicated to high-quality Multiple Choice Questions (MCQs) for students, job seekers, and professionals. Our mission is to provide reliable, accurate, and up-to-date learning material that helps users prepare effectively for school exams, competitive tests, departmental assessments, and job interviews.
At Q Mintz, we believe that consistent practice leads to success.
Search
What are the three primary colours of light?
A. Red, Yellow and Blue
B. Red, Green and Blue
C. Green, Yellow and Blue
D. Red, Green and Yellow
Correct Answer Is Option = Red, Green and Blue
Notes / Explanation
The three primary colours of light are red, green and blue, and understanding these primary colours is important for understanding how colour is produced and perceived, particularly in the context of light and of screens and displays. A primary colour is a basic colour that cannot be produced by mixing other colours together, but from which, by mixing in various combinations and amounts, a wide range of other colours can be created. In the case of light, the three primary colours are red, green and blue, and when lights of these three colours are combined in different proportions, they can produce an enormous range of other colours. This method of producing colours by adding together coloured lights is the basis of the way that colour is created on television screens, computer displays, mobile telephone screens and similar devices, which produce all the colours that we see on them by combining tiny points of red, green and blue light in varying amounts. When all three primary colours of light are combined together in full and equal measure, the result is white light, which is why white light can be thought of as a combination of colours, and when none of the coloured lights is present, the result is black or darkness. By varying the amounts of the three primary colours, all the many colours that appear on a screen can be produced. It is important to distinguish the primary colours of light from the primary colours used in painting and printing with pigments and dyes, which are different, because mixing coloured lights and mixing coloured paints work in different ways. When coloured lights are added together the result becomes brighter and tends towards white, whereas when coloured paints are mixed together the result becomes darker. This is why the set of primary colours for light is different from the set used for paints. The understanding of the primary colours of light and the way they combine is important in fields such as photography, television, computing and the study of vision and colour. For PPSC and other competitive examinations, the key points to remember are that the three primary colours of light are red, green and blue, that combining these coloured lights in different amounts produces a wide range of other colours, that combining all three in full measure produces white light, and that this method is the basis of the way colour is produced on television and computer screens.
