physics

A student wants to compare the luminous flux of a light bulb with that of a 1675 lm lamp. The light bulb and the lamp illuminate a sheet of paper equally. The 1675 lm lamp is 1.28 m away from the sheet of paper; the light bulb is 1.08 m away. What is the light bulb's luminous flux?

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  1. light bulb: 1675( 1.28/1.08)^2 lm

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  2. Thank You; my final answer is 2352.8

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    posted by Felicia

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