The activity R of an unknown nuclide is measured at hourly intervals The results found are tabulated as follows: - Physics - Nuclei

Question

The activity R of an unknown nuclide is measured at hourly
intervals The results found are tabulated as follows:

t (h)
0
1
2
3
4

R (MBq)
100
35 36
12 51
4 42
1 56

(a) Plot the graph of R versus t and calculate half life from the
graph
(b) Plot the graph of In (R/R0) versus t and obtain the
value of half life from the graph

Pintu B. · Accepted Answer

Dear Student , (a)

Above is the graph for part (a) and the half life is 0 8 hours (b)

This is the graph for ln(R/R0) vs t At half life ln(R/R0) = 0 5 and this happens approximately 0 7 hours Regards

t (h)	0	1	2	3	4
R (MBq)	100	35.36	12.51	4.42	1.56