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Reflectance is the ratio of energy reflected to the total energy incident on a body, expressed in percentage. An object appears green because it reflects only wavelengths corresponding to green color in the visible spectrum. What are the units of reflectivity? . Units of Z are typically given in mm6/m3Read More →

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This contrast is calculated using the following formula: (B1 – B2) x 100 / B1, where B1 and B2 are the LRV of the lighter area and darker area, respectively. The LRV can be obtained using the CIE Y values measured under the illuminant D65 (natural daylight) and 10° observer.Read More →