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At time t = 0, a container has N(0) radi...

At time t = 0, a container has `N_(0)` radioactive atoms with a decay constant `lambda`. In addition, c numbers of atoms of the same type are being added to the container per unit time. How many atoms of this type are there at t = T ?

A

`(c)/(lamda)`exp`(-lamdaT)-N_(0)`exp`(-lamdaT)`

B

`(c)/(lamda)`exp`(-lamdaT)+N_(0)`exp`(-lamdaT)`

C

`(c)/(lamda)`{1-exp`(-lamdaT)}+N_(0)`exp`(-lamdaT)`

D

`(c)/(lamda)`{1+exp`(-lamdaT)-N_(0)`exp`(-lamdaT)`

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