Plot a graph showing the variation of undecayed nuclei N versus time t. From the graph, find out how one can determine the half-life and average life of the radioactive nuclei.

 

 
 
 
 
 

Answers (1)

The graph showing the decay of radioactive nuclei:-

Hence, this graph shows the variation of undecayed nuclei N versus time t.

From the figure,

When

 N=\frac{N_{0}}{2}

Then the time

 (t)=T_\frac{1}{2}   (half-life)

and the average life,

\tau =\frac{\tau_\frac{1}{2}}{0.693}

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