greg1673 greg1673

02-06-2017
Physics

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A screen is placed between two lamps so that they illuminate the screen equally. The first lamp emits a luminous flux of 1375 lm and is 5 m from the screen. What is the distance of the second lamp from the screen if the luminous flux is 2167 lm? Answer in units of m.

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anonymous79 anonymous79

02-06-2017

answer is 7.88m i believe

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