a sample has the same number of two nuclei. The time taken for the ratio of number of nuclei to become (l/e)^2 will be

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Two radioactive substances A and B have decay constants 5λand λ respectively. At t=0, a sample has the same number of two nuclei. The time taken for the ratio of number of nuclei to become (l/e)^2 will be
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Two radioactive substances A and B have decay constants 5λand λ respectively. At t=0, a sample has the same number of two nuclei. The time taken for the ratio of number of nuclei to become (l/e)^2 will be a sample has the same number of two nuclei. The time taken for the ratio of number [...]
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