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Question

Consider the nuclear reaction X200A110+B90 if the binding energy per nucleon for X, A and B is 7.4 MeV, 8.2 MeV and 8.2 Mev respectively, what is the energy released?

A
200 MeV
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B
160 MeV
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C
110 MeV
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D
90 MeV
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Solution

The correct option is B 160 MeV
Total energy of X=2ω×7.4 MeV
Total energy of A=110×8.2 MeV
Total energy of B=90×78.2 MMeV
So, 2ω×7.4=(110×8.2)+(90×8.2)
Hence energy =2ω×7.4+(110×8.2)+(90×8.2)=160 MeV

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