A wooden box excavated from Indus valley had an activity of 9.3 disintegration per minute per gm of carbon. What is the approximate age of this civilization?

Options

A. 2000 years
B. 5700 years
C. 8100 years
D. Data insufficient

Answer

A

Explanation

`t=(2.303xxt_(1//2))/(0.693)"log"(15.2)/(9.3)`
`=(2.303xx5760)/(0.693)"log"(15.2)/(9.3)`
`=(2.303xx5760)/(0.693)xx0.213`
`=4084.1` years=4084 years.
Hence, the age of civilization is approximately 4000 years.