Multiple choice general knowledge science & technology

The eye of a human can distinguish …………… shades of the gray.

  1. 160

  2. 500

  3. 300

  4. 410
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The human eye can distinguish approximately 500 different shades of gray, demonstrating remarkable visual discrimination capability. This fact highlights the eye's sophisticated ability to perceive subtle variations in light intensity. The other numbers (160, 300, 410) are incorrect estimates.

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