(a) The decay constant of A is greater than that of B, hence A always decays faster than B
(b) The decay constant of B is greater than that of A but its decay rate is always smaller than that of A
(c) The decay constant of A is greater than that of B but it does not always decay faster than B
(d) The decay constant of B is smaller than that of A but still, its decay rate becomes equal to that of A at a later instant
Solution:
The correct options are:
(c) The decay constant of A is greater than that of B but it does not always decay faster than B
(d) The decay constant of B is smaller than that of A but still, its decay rate becomes equal to that of A at a later instant