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.

Plot a graph showing the variation of undecayed nuclei N versus time t

1.	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.
Answer» Solution :A graph showing the variation of undecayed nuclei N versus time FT has been plotted here. Let at time t=0, the number of nuclei be `N_(0)`. Then time CORRESPONDING to `N = N_(0)/2` will GIVE us the value of half-life period `T_(1/2)` of given radioactive nuclei. Now AVERAGE life of the nuclei `tau=T_(1/2)/0.6931=1.44T_(1/2)`

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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.

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