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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Rate of decay and Half-life

  • question_answer
    If 8.0 of a radioactive isotope has a half-life of 10 hrs. The half-life of 2.0 g of the same substance is          [UPSEAT 2001]

    A)                 2.5 hrs.                

    B)                 5 hrs.

    C)                 10 hrs.  

    D)                 40 hrs.

    Correct Answer: C

    Solution :

              Half-life is independent of initial amount.


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