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The TM measures the intensity of reflected radiation in six spectral bands--three in the visible wavelengths, blue (0.45-0.52 µm), green (0.52-0.60 µm), red (0.63-0.69 µm); one in the near infrared (0.76-0.90 µm); ...
In addition, many chemical compounds interact more strongly at visible wavelengths than at microwaves, resulting in a stronger image of these materials.
In optics, sunglasses, colored filters, dyes, and other such materials are designed specifically with respect to which visible wavelengths they absorb and how much.
to make composite images by displaying the image for each wavelength as red, green, or blue in the final image. These composite images result in color patterns that can be used to identify features invisible to the normal visible wavelengths of light ...
 See also: Component, Area, Class, Object, Survey
  
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