A radioactive nuclide can decay simultaneously by two different processes which have decay constant `lambda_(1)` and `lambda_(2)`. The effective decay constant of the nucleide is `lambda`

Options

A. `lambda = lambda_(1) +lambda_(2)`
B. `lambda=(lambda_(1)+lambda_(2))//2`
C. `(1)/(lambda)=(1)/(lambda_(1))+(1)/(lambda_(2))`
D. `lambda =sqrt(lambda_(1)lambda_(2))`

Answer

A