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mariarad [96]
3 years ago
13

How many photons with 10 ev are required to produce 20 joules of energy?

Mathematics
1 answer:
alexira [117]3 years ago
7 0
1 joule = 6,242e+18ev

20 joule = 20 joule *6,242e+18 ev/joule =1,248e+20 ev

1,248e+20 ev / (10 ev / photon) =1,248e+19 photons.



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