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

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Homework Statement


I have a quantity in Rayleighs and need to convert it to dB.

Homework Equations


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

The Attempt at a Solution


None so far-please advise.
Thanks.
 
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Try google here. There is no obvious connection between rayleighs and dB.
 
Thanks- already tried that. Also have instructor notes so I see how to handle it, but not why.
 
It would also help if you posted the text of whatever problem you are trying to solve.
 
andryd9 said:

Homework Statement


I have a quantity in Rayleighs and need to convert it to dB.

Homework Equations


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

The Attempt at a Solution


None so far-please advise.
Thanks.

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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