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Text File  |  1995-11-04  |  374b  |  11 lines
  1. optical spectrum: Produced by
  2. passing sunlight through a prism; the
  3. prism spreads the light into its
  4. constituent colors. Rainbows are
  5. another manifestation of the optical
  6. spectrum. The colors seen in the
  7. spectrum are commonly considered
  8. red, orange, yellow, green, blue,
  9. indigo, and violet in the order of
  10. increasing frequency and energy and
  11. decreasing wavelength.