Identify the term for the number of bits used to store the colour of each pixel.
Mark scheme
- A Colour depth (1)
- The only correct answer is A. The correct answer is colour depth.
- B is not correct because image size is the width and height of the image in pixels
- C is not correct because resolution is the number of pixels per unit length, such as pixels per inch
- D is not correct because storage size is the amount of storage the image file uses
Example answers and how they were marked
Full marks1/1
A Colour depth
Why: Correct option; colour depth is the number of bits used to store the colour of each pixel (1).
No marks0/1
B Image size
Why: Image size is the width and height of the image in pixels, not the number of bits used per pixel; no mark.
No marks0/1
D Storage size
Why: Storage size is the amount of storage the image file uses, not the colour depth; no mark.