Question
Physics Question on Atoms
The half life period of a radioactive element X is same as the mean life time of another radioactive element Y. Initially they have the same number of atoms. Then
A
X and Y decay at same rate always
B
X will decay faster than Y
C
Y will decay faster than X
D
X and Y have same decay rate initially
Answer
X will decay faster than Y
Explanation
Solution
The correct option is (B) : X will decay faster than Y