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When charcoal is prepared from a living ...

When charcoal is prepared from a living tree, it shows a disintergration rate of 15.3 disintergrations of `C^14` per gram per minute. A sample form an ancient piece of charcoal shows `C^14`activity to be 12.3 disintergrations per gram per minute. How old is this sample ? Half-life of `C^14` is 5730 y.

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[1804.6 years]
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When charcoal is prepared from a living tree, it shows a disintergration rate of 15.3 disintergrations of ^14C per gram per minute. A sample form an ancient piece of charcoal shows ^14C activity to be 12.3 disintergrations per gram per minute. How old is this sample ? Half-life of ^14C is 5730 y.

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