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Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Chapter 18 - Atoms and Nuclei > 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

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 of nuclei to become (l/e)^2 will be Two radioactive substances A and B have decay constants 5λand λ respectively. At t=0