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    Question

    Which of the following force holds protons and neutrons

    inside the nucleus of an atom?
    A Gravitational force Correct Answer Incorrect Answer
    B Electromagnetic force Correct Answer Incorrect Answer
    C Strong nuclear force Correct Answer Incorrect Answer
    D Weak nuclear force Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    The known forces of nature can be divided into four- gravity, electromagnetism, weak nuclear force and strong nuclear force. It is the strong nuclear force which holds protons and neutrons together inside an atom. Whereas weak nuclear force is responsible for the existence and structure of nuclei including radioactivity and nuclear fusion. Hence, option C is correct.

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