IB
IBO
Physics
October 2009
QP-200910-Physics-P1-SL · Question 24
Question (excerpt):
24. A radio-isotope has an activity of 400 Bq and a half-life of 8 days. After 32 days the activity of the sample is A. 200 Bq. B. 100 Bq. C. 50 Bq. D. 25 Bq.
24. A radio-isotope has an activity of 400 Bq and a half-life of 8 days. After 32 days the activity of the sample is A. 200 Bq. B. 100 Bq. C. 50 Bq. D. 25 Bq.
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