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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 g of a radioactive substance has a half-life of 10 hrs., the half-life of 2.0 g of the same substance is                [J & K 2005]

    A)                 2.6 hr    

    B)                 5 hr

    C)                 10 hr     

    D)                 40 hr

    Correct Answer: C

    Solution :

                    Half-life of same substance remains same.


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