Recent content by opticsman

  1. O

    Color ( Frequency or Wavelength ) ?

    I ask my question in another way! in a medium like water, for example, what would be happen for the red beam of he-ne laser ? does it change its color in water ?
  2. O

    Color ( Frequency or Wavelength ) ?

    Hi, i had this question about the light: " what does the color we see depends on? Frequency or Wavelength ? "
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