Art Education

Pixels and Digital Image Resolution

Q: Which primary lights are required to produce yellow on a digital screen?

Red and green The governing concept is additive colour mixing used by digital screens. A screen produces colours by combining emitted red, green, and blue light; when red and green light are added together at suitable intensity, the result is perceived as yellow. Therefore option A is correct. Red plus blue produces magenta, green plus blue produces cyan, and cyan plus magenta is not the primary-light combination for yellow on an RGB screen.

In this Class 9 Art Education topic from Digital Art, students learn how pixels form a digital image and how resolution affects its clarity, detail, size, and use. They explore image dimensions, pixel density, raster graphics, and the difference between viewing an image on screen and preparing it for print. Through simple examples, students understand why enlarging a low-resolution image can make it blurry and how to choose suitable resolution for digital artwork.

Hard · Level 1 · 2 questions

Practice questions

01What is a major reason colours may change when a digital image is printed?

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Answer and explanation

Correct answer: A. Screens use additive colour while printing uses subtractive colour.

The governing concept is conversion between colour systems and media. A screen emits red, green and blue light, so its colours are additive; printed inks such as cyan, magenta, yellow and black absorb light from paper, so printing is subtractive. Ink limits, paper and profiles can also affect the result. Option A states the main reason; B, C and D are false.

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02Which primary lights are required to produce yellow on a digital screen?

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Answer and explanation

Correct answer: A. Red and green

The governing concept is additive colour mixing used by digital screens. A screen produces colours by combining emitted red, green, and blue light; when red and green light are added together at suitable intensity, the result is perceived as yellow. Therefore option A is correct. Red plus blue produces magenta, green plus blue produces cyan, and cyan plus magenta is not the primary-light combination for yellow on an RGB screen.

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Pixels and Digital Image Resolution

Practice questions

01What is a major reason colours may change when a digital image is printed?एक डिजिटल चित्र को छापने पर रंग बदलने का मुख्य कारण क्या हो सकता है?

02Which primary lights are required to produce yellow on a digital screen?डिजिटल पर्दे पर पीला रंग बनने के लिए किन प्राथमिक प्रकाशों की आवश्यकता होती है?

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01What is a major reason colours may change when a digital image is printed?

02Which primary lights are required to produce yellow on a digital screen?