rawr2515 rawr2515

02-03-2022
Physics

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A 50W fluorescent lamp turns one quarter the electrical energy it uses into light energy. How much light energy does it give out in 12s?

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900331912 900331912

02-03-2022

Answer: A watt unit is equal to 1 joule/sec.

Explanation: So you have a lightbulb with 50% efficiency, so it turns half the energy it consumes into light energy.

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