1. If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is A. 24 lux. B. 648 lux. C. 216 lux. D. 8 lux.

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1. If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is A. 24 lux. B. 648 lux. C. 216 lux. D. 8 lux.

If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is 8 lux.

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Asked 6/26/2016 8:45:17 PM

Updated 6/27/2016 8:09:08 AM

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Edited by jeifunk [6/27/2016 8:09:07 AM], Confirmed by jeifunk [6/27/2016 8:09:08 AM]

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