1.

A wooden article and a freshly cut tree show activity 7.6 counts "min"^(-1) g^(-1) and 15.2 counts "min"^(-1) g^(-1) of carbon (t_(1//2) = 5760 years) respectively . The age of the article is :

Answer»

5760 YEARS
`5760 XX (15.2)/(6)` years
`5760 xx (7.6)/(15.2)` years
`5760 xx (15.2 - 7.6)` YEAR

Solution :`t = (2.303)/(0.693) xx 5760 xx log ((15.2)/(7.6)) , t = 5760` year


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