The half life period of a radioactive element X is same as the mean li – McqOptions

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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 [IIT 1999; UPSEAT 2003]
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» D. X will decay at a faster rate than Y

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