Multiple choice general knowledge

After spending hours working at a computer display, look at a blank piece of white paper. It will probably appear

  1. red

  2. black

  3. pink

  4. white
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

After staring at a computer display, the photoreceptors in your eyes become fatigued from the blue light. When looking at white paper, the contrast causes an afterimage effect - white appears pinkish as your eyes' color receptors readjust their sensitivity.

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