Question

A radionuclide $A_1$ with decay constant ${\lambda }_1$ transforms into a radionuclide $A_1$ with decay constant ${\lambda }_2$. Assuming that at the initial moment the preparation contained only the radionuclide $A_1$, then the time interval after which the activity of the radionuclide $A_2$ reaches its maximum value is

• A. $\frac{ln\left({\lambda }_2/{\lambda }_1\right)}{{\lambda }_2+{\lambda }_1}$
• B. $\frac{ln\left({\lambda }_1/{\lambda }_2\right)}{{\lambda }_2+{\lambda }_1}$
• C. $ln\left({\lambda }_2/{\lambda }_1\right)$-1
• D. None of these

Answer 1

The correct option is D None of these