Question: a 2 0 3 0 lumen light bulb hangs from a tree limp 3 m above the ground. what is luminance intensity of that light

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lumen light bulb hangs from a tree limp

3

m above the ground. what is luminance intensity of that light bulb? What is the illuminance on the ground at thee brightest point? What is the illuminance on the egornd, four meters awayf rom the brightest point?

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