10.16. When passing light rays with a wavelength of y 430 nm. Theorell obtained the following values of the percentage of rays IP passing through a mastic sol layer of various concentrations and thicknesses l. Calculate the average value of the absorption coefficient e of the sol.
Concentration С, % 0.60 0.20 0.08 0.04 0.02 0.01
l 103, m 2.5 2.5 20.0 20.0 20.0 30.0
IP, % 3.1 29.4 2.6 15.9 40.6 52.8

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