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OAU: The count rate of an alpha particle source is 400 per minute, if the...

OAU: The count rate of an alpha particle source is 400 per minute, if the half life of the source is 5 days, what will be the count rate per minute after 15 days?
In Obafemi Awolowo University
1 Answers Available
Asked by Cov20 on 14th January, 2015
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