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The graph below shows how the activity of a radiation nuclide varies with time.

      

The graph below shows how the activity of a radiation nuclide varies with time.
physics2632019243.png
i) From the graph of activity against time above determine the half life of the nuclide.
ii) Using the half life obtained in e(i) how long would it take for the count rate of fall from 320 counts per minute to 80 counts per minute.

  

Answers


sharon
i) half life 3.6 minutes ± 0.01
physics2632019246.png
sharon kalunda answered the question on March 26, 2019 at 11:47


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