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A atomic power reactor furnace can deliver 300 MW. The energy released due to fission of each of uranium atom U238 is 170 MeV. The number of uranium atoms fission per hour will be 
Options:
A .  5×1015
B .  10×1022
C .  40×1021
D .  30×1025
Answer: Option C
:
C
By using P=Wt=n×Et where n = Number of uranium atom fission and E = Energy released due to each fission so 300×106=n×170×106×1.6×10193600n=40×1021

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