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JIPMER Jipmer Medical Solved Paper-1999

  • question_answer
    The half-life period of 10 g of radium sample is 1600 year. If 20 g of sample is taken, in how many years will it be remained 10 g?

    A)  1600 years         

    B)  3200 years         

    C)         800 years       

    D)         none of these

    Correct Answer: A

    Solution :

    As the half-life period of radium is 1600 years, hence the time taken for the sample to remain 10 g from initial amount of 20 g is 1600 years. (Half-life is a characteristic of radioactive substance and is independent of initial amount)


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