Recent content by finnch

  1. finnch

    UVA vs UVB: Why does UVA penetrate deeper into the skin?

    Sorry Ygggdrasil, After a little more reflection, your response does make sense and the youtube video I posted earlier actually supports your response. I was looking for an explanation considering only the energy side of the question without considering the scattering when the light actually...
  2. finnch

    UVA vs UVB: Why does UVA penetrate deeper into the skin?

    Dear Sir, Thank you for your reply but I disagree with your response. In our atmosphere, blue light, with a higher frequency (shorter wavelength) scatters more than red light with a longer wavelength and lower frequency. Scattering is proportional to frequency raised to the power of...
  3. finnch

    UVA vs UVB: Why does UVA penetrate deeper into the skin?

    Hello, My name is Chris and I am trying to understand why UVA radiation, with a longer wavelength, penetrates deeper into the skin than UVB which has a shorter wavelength. Since E=hv=hc/ λ and , then how does a lower energy and lower intensity UVA wave penetrate deeper into the skin than a...
  4. finnch

    UVA/UVB Light: Why does UVA penetrate deeper into the skin?

    [Mentor's Note: Thread moved from New Member Introductions] Hello, My name is Chris and I am trying to understand why UVA radiation, with a longer wavelength, penetrates deeper into the skin than UVB which has a shorter wavelength. Since E=hv=hc/ λ and then how does a lower energy...
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