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Exercise.9 - The activity of a certain radioactive nuclide is plotted on a semilog WALL graph as a- function of time. Use this graphic data to determine:" a. The half-life of this radionuclide- Ans: 1 b.How long it will take for the activity to decrease from { 100,000-disintegrations per minute (dom) to 1000 dom? Ans: - c. The activity (dpm) after 88 hours] ad=(In(N N.))=(In(6* Activity vs. -Time + "2 0.693/2=0.693/0.0576 =12.03-hrs b.( In(N//N.)-2=In(1000/1000000)/-0.0576hr = 79.9509-hr 10)=3773.9781=3.77*10' Ans:-1 1x1051