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       #Post#: 2021--------------------------------------------------
       Daily question-70
   DIR By: Shiva
       Date: February 1, 2013, 2:18 pm
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       Slow neutrons are incident on a sample of Uranium containing
       both 235 U and 238 U isotpes. Then
       
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       (a) Only 235 U atoms undergo fission
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       (b) Only 238 U atoms undergo fission
       92
       (c) Both 235 U and 238 U undergo fission
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       (d)  Neither 235 U and 238 U will undergo fission
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