Multiple choice general knowledge

The eye of a human can distinguish

  1. 550 shades of the gray

  2. 450 shades of the gray

  3. 600 shades of the gray

  4. 500 shades of the gray

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The human eye can distinguish approximately 500 shades of gray, making option D correct. This is a well-established fact in human visual perception - the eye can detect subtle differences in luminance across this range.