J & K CET Medical J & K - CET Medical Solved Paper-2005

  • question_answer
    If 8.0 g of a radioactive substance has a half-life of 10 h, the half-life of 2.0 g of the same substance is:

    A)  2.6 h                                    

    B)  5h

    C)  10 h                                      

    D)  40h

    Correct Answer: C

    Solution :

                    The half-life period of a radioactive substance is the time at which its half amount disintegrates. The half-life does not depend upon the initial amount of the radioactive substance.


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