A piece of wood from the ruins of an ancient building was found to have a 14 C activity of 12 disintegrations per minute per gram of its carbon content. The 14 C activity of the living wood is 16 disintegrations per minute per gram. How long ago did the tree, from which the wooden sample came, die? Given half-life of 14 C is 5760 yr.
A piece of wood from the ruins of an ancient building was found to have a 14 C activity of 12 disintegrations per minute per gram of its carbon content. The 14 C activity of the living wood is 16 disintegrations per minute per gram. How long ago did the tree, from which the wooden sample came, die? Given half-life of 14 C is 5760 yr.
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1 Answer
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This is a Short Answer Type Questions as classified in NCERT Exemplar
Explanation- R= 12dis/min per gm and R0= 16dis/min per gm T1/2= 5760yr
R=
By taking log
= log1016/12
= 2.303 (0.6020-4.771)5760/0.6931
= 2391.20yr
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