Radioactive substance has a constant activity of 2000 disintegrations per minute. The material is separated into two fractions, one of which has an in

Radioactive substance has a constant activity of 2000 disintegrations per minute. The material is separated into two fractions, one of which has an in
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Radioactive substance has a constant activity of 2000 disintegrations per minute. The material is separated into two ... 1500 B. 1000 C. 1250 D. 2000
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Which is the unit of activity of a radioactive source?

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