Physics, 12.02.2022 22:50 Dweath50

Reading lamp uses a 1,800-lumen lightbulb. Fatima holds her book about 3.0 meters from the lamp. What is
the illuminance (E) of the light when it hits Fatima's book?

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Reading lamp uses a 1,800-lumen lightbulb. Fatima holds her book about 3.0 meters from the lamp. W...