## Question

###### Nucleus A has a half-life T and nucleus B has a half-life 2T. Initially the number of nuclei of type A equals the number of nuclei of type B After a certain time , 10% of the nuclei of type B remain: At this same time, what fraction of the nuclei of type A remains?Select one: a_ 5%b. 0.01%50%d. 1%

Nucleus A has a half-life T and nucleus B has a half-life 2T. Initially the number of nuclei of type A equals the number of nuclei of type B After a certain time , 10% of the nuclei of type B remain: At this same time, what fraction of the nuclei of type A remains? Select one: a_ 5% b. 0.01% 50% d. 1%

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