Radiant power specularly reflected from the surface of a system,

,
divided by the incident
power,
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:
Source:
PAC, 1985, 57, 105
(Names, symbols, definitions and units of quantities in optical spectroscopy (Recommendations
1984))
on page 115
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.