Doubt in electromagnetic spectrum

  1. In electromagnetic spectrum, why there is no radiation less than wavelength of Gamma rays and waves higher than the wavelength of Radio waves?
  2. jcsd
  3. DrClaude

    Staff: Mentor

    The Wikipedia entry on the electromagnetic spectrum contains a lot of relevant information. There is no shorter wavelength than a gamma ray if you call all that is below 10 pm, but as Wikipedia points out, very high energy radiation is sometimes simply called high energy photons. Same for radio waves: all that is above 1 mm in wavelength is considered a radio wave.
  4. BruceW

    BruceW 3,600
    Homework Helper

    yeah, It's really just an arbitrary assignment. We 'categorize' wavelengths according to how they are useful to us.
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