Punjab Medical Punjab - MET Solved Paper-2008

  • question_answer
    In Sun, the important source of energy is

    A)  proton-proton cycle

    B)  carbon-nitrogen cycle

    C)  carbon-carbon cycle

    D)  nitrogen-nitrogen cycle

    Correct Answer: A

    Solution :

    In Sun, the important source of energy is proton-proton cycle. According to this cycle nuclei of hydrogen through many reactions fuse to form nucleus of helium and in this process huge amount of energy is released.


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