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Sahay Sir > Question Answers > MTG NEET Physics > Part 2 > Chapter 13 - Nuclei > A radioactive element X with a half life period of 2 hours decays giving a stable element Y. After a time t the ratio of X to Y atoms is 1 : 7. Then t is

A radioactive element X with a half life period of 2 hours decays giving a stable element Y. After a time t the ratio of X to Y atoms is 1 : 7. Then t is

A radioactive element X with a half life period of 2 hours decays giving a stable element Y. After a time t the ratio of X to Y atoms is 1 : 7. Then t is