It takes an infinite time for complete decay of a radioactive element. but on the same time we calculate the half life of radioactive material i-e T-1/2 = ln 2 / lamda. is that means that if we double the half life time we could reach the total life time of radioactive decay so on contrary we have reached the infinity. which is impossible. how can this be cleared.(adsbygoogle = window.adsbygoogle || []).push({});

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# Half Life of radioactive element

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