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A radioactive sample S1 having an activi...

A radioactive sample `S_1` having an activity of `5muCi` has twice the number of nuclei as another sample `S_2` which has an activity of `10muCi`. The half-lives of `S_1` and `S_2` can be

A

20 years and 5 years, respectively

B

20 years and 10 years, respectively

C

10 years each

D

5 years each

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Verified by Experts

The correct Answer is:
A
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