A piece of wood from an archaeological source shows a 14C activity which is 60% of the activity found in fresh wood today. The age of archaeological sample will be:
A
4246 yrs
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B
4624 yrs
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C
4628 yrs
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D
6248 yrs
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Solution
The correct option is A4246 yrs k=0.6935760years−1So,0.6A0=A0e−0.6935760t−ln(0.6)=0.6935760tt=4246yers.