Q.

An archaeologist analyses the wood in a prehistoric structure and finds that C14 (Half-life = 5700 years) to C12 is only one- fourth of that found in the cells buried plants. The age of the wood is about

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a

5700 years

b

2850 years

c

11,400 years

d

22,800 years

answer is C.

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Detailed Solution

C14C12=14=12t/5700⇒t5700=2⇒t=11400 years
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An archaeologist analyses the wood in a prehistoric structure and finds that C14 (Half-life = 5700 years) to C12 is only one- fourth of that found in the cells buried plants. The age of the wood is about