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25 July, 18:26

Which color has the longest wavelength?

Question options:

Yellow

Red

Purple

Blue

+1
Answers (2)
  1. 25 July, 18:35
    0
    Red has the longest wavelength (≈620-740 nm).
  2. 25 July, 21:48
    0
    Hello

    the answer is red
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