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KVPY Sample Paper KVPY Stream-SX Model Paper-3

  • question_answer
    A heavy nucleus \[x\,(A=180)\] breaks into two nuclie \[y\,(A=140)\] and \[z\,(A=40)\] Energy released during fission reaction is:

    A) 110 MeV

    B) 220 MeV

    C) 200 MeV

    D) Energy is not released                                                           

    Correct Answer: B

    Solution :

    Released energy\[=140\times 7+8\times 40-180\times 6\]\[=980+320-1080\]\[=220\,MeV.\]


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