1.

A radioactive nuclide A_1with decay constant , lamda_1 transform into a radioactive nuclide A_2with decay constant lamda_2 . Assuming that at the initial moment the preparation contained only the nuclide A_1Find the time interval after which the activity of the nuclide A_2reach its maximum value.

Answer»


ANSWER :`(In(lamda_(2)//lamda_(1)))/(lamda_(2)-lamda_1)`


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