Question

after a certain lap of time the fraction of radioactive Polonium is found to be 12.5% of its initial value what is the duration of the this timelapse if half life of polonium is 139 days

Answer 1

Answer:

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Explanation:

After a certain lapse of time, the fraction of radioactive polonium undecayed is found to be 12. 5% of initial quantity. The duration of this time lapse is (if the half-life of polonium is 138 days)Dec 27, 2019