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Thread: Half Life Question

  1. #1 Half Life Question 
    Forum Freshman
    Join Date
    Feb 2009
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    14
    I couldn't figure out how to answer this question:

    A student wants to measure the half life of a radioactive isotope. He is told the isotope has a half life of between 10 and 20 minutes. Illustrating your answers appropriate, describe:

    A). the measurements that he should take
    B). how he should use the measurements to arrive at an estimate of the half life for the isotope.

    I understand that to measure the half life of a radioactive material you measure the activity of the sample at regular times.

    What I do not understand is the significance of the half life being between 10 and 20 minutes.

    I also don't know how to do question b.


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  3. #2  
    Reptile Dysfunction drowsy turtle's Avatar
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    Mar 2009
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    Line of best fit on a graph?


    "The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair." ~ Douglas Adams
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