A) \[2.275\times {{10}^{3}}\]years
B) \[2.5\times {{10}^{3}}\]years
C) \[8.825\times {{10}^{2}}\]years
D) \[11.832\times {{10}^{3}}\]years.
Correct Answer: A
Solution :
Average life = half life \[\times 1.44\] \[=1580\times 1.44\] \[=2275.2\] \[=2.275\times {{10}^{3}}\] years.
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