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Consider the production series of radioactive sample A decays to sample B then decays to stable...

Consider the production series of radioactive sample A decays to sample B then decays to stable sample C. Na(0)=N0; Nb(0)=N0/4. lambda A and lambda B is equal to lambda. Derive the activity of sample B as a function of time (t), and the time at which Nb is maximum. Show all of the steps in your work and how you get the answers.

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