Half lives of two radioactive nuclei A and B are 10 minutes and 20 min – McqOptions

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1.	Half lives of two radioactive nuclei A and B are 10 minutes and 20 minutes, respectively. If, initially a sample has equal number of nuclei, then after 60 minutes, the ratio of decayed numbers of nuclei A and B will be:
A.	3 : 8
B.	1 : 8
C.	8 : 1
D.	9 : 8
Answer» E.

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