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

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Homework Help Overview

The discussion revolves around converting a quantity measured in Rayleighs to decibels (dB). Participants are exploring the relationship between these two units, particularly in the context of intensity reflection coefficients.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Some participants question the connection between Rayleighs and dB, noting a lack of obvious relationships. Others express uncertainty about the conversion process and seek clarification on the underlying principles.

Discussion Status

The discussion is ongoing, with participants sharing their attempts to find information and seeking further guidance. Some have referenced external resources and instructor notes, indicating a desire to understand the reasoning behind the conversion rather than just the method.

Contextual Notes

There is mention of an instructor's notes and a request for additional context regarding the specific problem being addressed, suggesting that the original poster may have constraints or specific requirements that are not fully articulated.

andryd9
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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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