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Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Chapter 18 - Atoms and Nuclei > A sample of radioactive material A, that has an activity of 10mCi(lCi=3.7×10^10 decays/s), has twice the number of nuclei as another sample of a different radioactive maternal B which has an activity of 20 mCi. The correct choices for hall-lives of A and B would then be respectively :

A sample of radioactive material A, that has an activity of 10mCi(lCi=3.7×10^10 decays/s), has twice the number of nuclei as another sample of a different radioactive maternal B which has an activity of 20 mCi. The correct choices for hall-lives of A and B would then be respectively :

A sample of radioactive material A has twice the number of nuclei as another sample of a different radioactive maternal B which has an activity of 20 mCi. The correct choices for hall-lives of A and B would then be respectively : that has an activity of 10mCi(lCi=3.7×10^10 decays/s)