A piece of wood from an archaeological source shows a 14C activity is 60% of the activity found in fresh wood today. Calculate the age of the archaeological sample. (t1/2=C=5770yr)
A
t=4254years
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B
t=1254years
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C
t=2254years
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D
None of these
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Solution
The correct option is At=4254years λ=2.303tlogC0C 0.693t50=2.303tlogC0C 0.6935770=2.303tlog10060 t=4254years