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Help please -- What is a Rayleigh? How do I work with it?

  1. Dec 15, 2014 #1
    1. The problem statement, all variables and given/known data
    I have a quantity in Rayleighs and need to convert it to dB.

    2. Relevant equations
    Intensity Reflection Coefficient R=5.625 x 10^-1 Rayls. dB?

    3. The attempt at a solution
    None so far-please advise.
    Thanks.
     
  2. jcsd
  3. Dec 15, 2014 #2

    SteamKing

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    Try google here. There is no obvious connection between rayleighs and dB.
     
  4. Dec 15, 2014 #3
    Thanks- already tried that. Also have instructor notes so I see how to handle it, but not why.
     
  5. Dec 15, 2014 #4

    SteamKing

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    It would also help if you posted the text of whatever problem you are trying to solve.
     
  6. Dec 15, 2014 #5

    berkeman

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    Staff: Mentor

    The Rayleigh is a unit related to light flux: http://en.wikipedia.org/wiki/Rayleigh_(unit)

    dB is a relative measure. Maybe they are asking for dB above 1R in this context?
     
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