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An isotropic light source has an intensity of 250 cd. Located 3 m away is an object whose surface has a reflectance of 0.35.
An isotropic light source has an intensity of 250 cd. Located 3 m away is an object whose surface has a reflectance of 0.35. Calculate (a) the total luminous flux emanating from the light source, (b) the illuminance of the surface of the object, and (c) the luminance emit- ted by the reflected light.
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Smith and Roberson Business Law
Authors: Richard A. Mann, Barry S. Roberts
15th Edition
1285141903, 1285141903, 9781285141909, 978-0538473637
