1.

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 yA. `X`and `Y` have the same decay rate initiallyB. `X` and `Y` decay at the same rate alwaysC. `Y` will decay at a faster rate than `X`D. `X` will decay at a faster rate than `Y`

Answer» Correct Answer - C
`(T_(1//2))_(X) = (bar(T))_(Y) = 1.44(T_(1//2))_(Y)`
`(T_(1//2))_(Y) lt (T_(1//2))_(X)`


Discussion

No Comment Found

Related InterviewSolutions