Question

1. The data at the right represents the number of day time(min) count counts detected from a radioactive source in the indicated time intervals. Use these to estimate the lifetime, τ, of the source and give the uncertainty in the lifetime, ie. τ στ. Use the proper number of significant digits and give the units of the results. The readings are all taken at the same time of the day on the different days. (Note that this is analogous to RC decay and you would solve it the same way. Plot In(count rate) v:s time. The slope is - 1/t.) 0 1036 997 890 882 792 783 768 742 698 675 4 2 6

Answer 1

6ten that the dota et s the uanbes of a dadioae Souzcendi cated On Counts tected tine tevals = Court/ time 518 6-2. a8.5 840 5.98 386 92. #58 5-86 vs ime we. Cau孑ind the Slope , ether .tuo points are ゾ Stope 3 day

-0.13 Slope -slofe as given inthe guestion ,we have. 극 stope 3x26 6、여 6.8 62 Scale Division on Ys S.3 62 61 6.0 5-2 o35 6 8 o time