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37. The decay constants of two radioactive materialsX1 and X2 are 5λ s-1 and 3λ s-1 respectively. Initiallythe materials have same numbers of nuclei. Thenthe ratio of undecayed nuclei of X1 and X2 will beafter a time(b) 2h5λ(a) T57(c)(d) 쭝2λ32 (d)

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Answer;b)Explanation:



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