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A wooden article found in a cave has onl...

A wooden article found in a cave has only 40% as much `.^(34)C` activity as a fresh piece of wood. How old is article?
(`t_(1//2)` for `.^(14)C = 5760` year)

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The amount of C-14 in a piece of wood is found to be 1/6 of the amount present in a fresh piece of wood. What is the age of the wood ? (t_(1//2) for C-14 =5770 years)

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OP TANDON-RADIOACTIVITY AND NUCLEAR TRANSFORMATION -Problem Practices
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  2. One gram of a radioactive element decays by beta-emission to 0.125 in ...

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