The half period of a radioactive element is 20 years. If a sample of t – InterviewSolution

1.	The half period of a radioactive element is 20 years. If a sample of this nucleide has an initial activity of 20000 dis/min, the activity after 80 years would be:
Answer» 2500 dis/min 5000 dis/min 20,000 dis/min 1250 dis/min. Answer :D

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