At some instant, a radioactive sample `S_(1)` having an activity 5 `muCi` has twice the number of nuclei as another sample `S_(2)` which has an activity of 10 `muCi`. The half lives of `S_(1) and S_(2)` are :A. 20 years and 5 years, respectivelyB. 20 years and 10 years, respectivelyC. 10 years and 20 years, respectivelyD. 5 years and 20 years, respectively

At some instant, a radioactive sample `S_(1)` having an activity 5 `mu

1.	At some instant, a radioactive sample `S_(1)` having an activity 5 `muCi` has twice the number of nuclei as another sample `S_(2)` which has an activity of 10 `muCi`. The half lives of `S_(1) and S_(2)` are :A. 20 years and 5 years, respectivelyB. 20 years and 10 years, respectivelyC. 10 years and 20 years, respectivelyD. 5 years and 20 years, respectively
Answer» Correct Answer - A

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