The half-life period of a radio-active element X is same as the mean life time of another radio-active element Y . Initially they have the same number of atoms. Then
X and Y decay at same rate always
X will decay faster than Y
Y will decay faster than X
X and Y have same decay rate initially
As we learnt in
Number of nuclei in terms of half life -
- wherein
Very useful to determine number of nuclei in terms of half life
X will decay faster than Y
Correct option is 2
Option 1)
X and Y decay at same rate always
This is an incorrect option.
Option 2)
X will decay faster than Y
This is the correct option.
Option 3)
Y will decay faster than X
This is an incorrect option.
Option 4)
X and Y have same decay rate initially
This is an incorrect option.
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