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Sahay Sir > Question Answers > MTG NEET Physics > Part 2 > Chapter 13 - Nuclei > A radioactive material of half-life time of 69.3 days kept in a container. 2/3 rd of the substance remains undecayed after (given, ln 3/2=0.4)

A radioactive material of half-life time of 69.3 days kept in a container. 2/3 rd of the substance remains undecayed after (given, ln 3/2=0.4)

A radioactive material of half-life time of 69.3 days kept in a container. 2/3 rd of the substance remains undecayed after (given ln 3/2=0.4)