Multiple choice general knowledge math & puzzles

One of these colors is visible in a rainbow:

  1. Lime

  2. Purple

  3. Indigo

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

Indigo is one of the seven traditional colors of the visible spectrum (ROYGBIV). While lime, purple, and cyan are colors, they are not part of Newton's classic seven-color rainbow sequence, which consists of red, orange, yellow, green, blue, indigo, and violet.

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