1.

The half life of C-14 is 5600 years. A sample of freshely cut wood from a tree contains 10 mg of C-14. The amopunt left in the sample after 50000 years is (a-x)`xx100`. The value of `(a-x)xx100` is

Answer» Correct Answer - 2
`a-x=N""_(0)/2""^(n)=10/2""^(9)=10/512xx100=1.953=2,n=t/t""_(1//2)`


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