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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Radioactivity

  • question_answer
    Half-life of a radioactive substance is T.  The time taken for all the nuclei to disintegrate will be

    A)            2T  

    B)            T2

    C)            4T  

    D)            Uncertain

    Correct Answer: D

    Solution :

               Uncertain, because it is infinite. No radioactive element can be disintegrated fully.


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