1 Activity 1 300 400 0 100 200 300 Tune (3) - The graph above shows the activity of a radon source as a function of time
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1 Activity 1 300 400 0 100 200 300 Tune (3) - The graph above shows the activity of a radon source as a function of time
1 Activity 1 300 400 0 100 200 300 Tune (3) - The graph above shows the activity of a radon source as a function of time. Which one of the following is nearest to the half - life, t1/22 O 120 s O 100 s. O 80 s. O 250 s. O 50 s.
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