A 1,730 lumen light bulb hangs from a tree limb 3 m above the ground? A....
A 1,730 lumen light bulb hangs from a tree limb 3 m above the ground?
A. What is the luminance intensity of that light bulb?
B. What is the illuminance on the ground at the brightest point (right under the light bulb)?
C. What is the illuminance on the ground, three meters away from the brightest point?
Homework Answers
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A 1,730 lumen light bulb hangs from a tree limb 3 m above the
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