Question
Physics Question on Nuclear physics
The half-life period of a radioactive element X is same as the mean life of another radioactive element Y. Initially, both of them have the same numbers 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.
Answer
Y will decay at a faster rate than X.
Explanation
Solution
The correct option is (C): Y will decay at a faster rate than X.