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Uncertainty-what is the rate with 0.59% precision?

  1. Jun 24, 2013 #1
    Uncertainty--what is the rate with 0.59% precision??

    1. The problem statement, all variables and given/known data

    Assume that negligible uncertainty in timing of a clock, calculate the number of counts required to measure a rate with 0.50% precision.

    2. Relevant equations
    The least accuracy is 0.50%?


    3. The attempt at a solution
    No idea what the question ask about...please guide.thanks
     
  2. jcsd
  3. Jun 24, 2013 #2

    mfb

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    A rate of what? Radioactive decays, or some other random source?

    The rate of another clock can be determined with arbitrary precision after the second count, so I doubt that this is the answer.
     
  4. Jun 24, 2013 #3
    What is the count ? Second of the clock?


    Here is the exact question
    Assuming negligible uncertainty in timing a clock, calculate the number of counts required to measure a rate of 0.5% precision. Now your clock has a random uncertainty of 0.2%, then how many counts are required to measure a rate with 0.50% precision?
     
  5. Jun 24, 2013 #4

    mfb

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    In which context does the question appear?
    Did you get similar problem statements before?
     
  6. Jun 24, 2013 #5
    The paper is teaching how to calculate uncertainty when we are doing experiment. It is a paper to introduce experimental method.
    I never do this before.
     
  7. Jun 24, 2013 #6

    mfb

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    Sure, but what type of experiment?
    Is that paper accessible somewhere?
     
  8. Jun 25, 2013 #7
    That is just a general introduction for first year student. That is past year exam paper. Our past year used to have some problems.
    Thanks anyway.
     
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