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Wave Optics

Question

The half-life period of a radioactive element X is same as the mean life time of another radio active element Y. Initially if they have the same number of atoms then which will take a faster decay?

Solution

Given,

Half life for X is the same as mean life time of another radio active element Y.

i.e., $T_{X} = τ_{Y} = 1.44 T_{Y}$

Now, as half life of Y is shorter than half life of X, therefore Y will decay faster than X.

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Wave Optics

The half-life period of a radioactive element X is same as the mean life time of another radio active element Y. Initially if they have the same number of atoms then which will take a faster decay?

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