The half-life of C-14 is the time it takes for half of the radioactive isotope to decay. Since the wood has half the original C-14 activity, it has undergone one half-life. Therefore, the tomb is approximately 6000 years old.
The radioactivity due to C-14 isotope (half life 6000 years) a sample of wood from an ancient tomb was found to be nearly half of that fresh wood. The tomb is therefore about _____?
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