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

[andryd9]

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.

 

[SteamKing]

Try google here. There is no obvious connection between rayleighs and dB.

 

[andryd9]

Thanks- already tried that. Also have instructor notes so I see how to handle it, but not why.

 

[SteamKing]

It would also help if you posted the text of whatever problem you are trying to solve.

 

[berkeman]

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?