10.3. Based on experimental data on the dependence of the brightness of the Tyndall cone (IP) observed in a colloidal solution of tin acid on the average wavelength of light (y), show the validity of the Rayleigh equation for scattered light rays:
Light wavelength y * 10 ^ 9, m 566 533 484
Extrapolated IP scattered light brightness (Tyndall effect) 1400 2040 2680
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