U₂₃₅
U₂₃₈
Pu₂₃₃
Pu₂₃₉
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Answer : Option B
Explanation :
Uranium (92U) is a naturally occurring radioactive element that has no stable isotopes but two primordial isotopes (uranium-238 and uranium-235)
20
200
2000
20,000
A nuclear fission produces energy of 200 MeV
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There is no such criterion
A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is More