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Penetraring power of EM waves

  1. Jul 29, 2015 #1
    According to Max planks equation, E=h*f, the more is the frequency the more is the energy of the EM waves. So why UVC (shortest uv ray or high frequency uv ray ) is absorbed by the ozone and UVA and UVB rays ( longer uv rays than UVC penetrate the ozone and reach the earth's surface?
  2. jcsd
  3. Jul 29, 2015 #2


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    It's the molecules constituting the ozone that determines how much light is absorbed at different frequencies. Within UV region, the absorption mainly comes from O2 and O3.
    Last edited: Jul 29, 2015
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