The half-life period of a radioactive element x is same as the mean life time of another radioactive element y. Initially, both of them have the same number of atoms. Then,
(a) x and y have the same decay rate initially
(b) x and y decay at the same rate always
(c) y will decay at a faster rate than x
(d) x will decay at a faster rate than y

Options

A. x and y have the same decay rate initially
B. x and y decay at the same rate always
C. y will decay at a faster rate than x
D. x will decay at a faster rate than y

Answer

C