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Which of the following best defines a pixel in the context of digital images?

easy🧠 Conceptual Q1 of Q15
Intro to Computing - How Data is Represented
Which of the following best defines a pixel in the context of digital images?
AThe physical size of an image on a screen
BA type of image file format
CThe total number of colors in an image
DThe smallest unit of a digital image that holds color information
Step-by-Step Solution
Solution:

  1. Step 1: Understand what a pixel is

    A pixel is the smallest element of a digital image that can be displayed and edited.

  2. Step 2: Identify the correct definition

    Among the options, only The smallest unit of a digital image that holds color information correctly describes a pixel as the smallest unit holding color information.

  3. Final Answer:

    The smallest unit of a digital image that holds color information -> Option D

  4. Quick Check:

    Pixel = smallest color unit [OK]
Quick Trick: Pixel = smallest colored dot in an image [OK]
Common Mistakes:
MISTAKES
  • Confusing pixel with image file format
  • Thinking pixel refers to image size
  • Assuming pixel means total colors

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