Nuclear Chemistry - Result Question 7
####10. Carbon - 14 dating method is based on the fact that:
[1997]
(a) $C$-14 fraction is same in all objects
(b) $C$-14 is highly insoluble
(c) Ratio of carbon-14 and carbon-12 is constant
(d) all the above
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Solution:
- (c) By carbon dating method
Age of wood $=\frac{2.303}{0.693} \times t _{1 / 2} \log (\frac{N_0}{N})$ $[\frac{\text{ ratio of } C^{14} / C^{12} \text{ in living wood }}{\text{ ratio of } C^{14} / C^{12} \text{ in dead wood }}]$
Hence, it is based upon the ratio of $C^{14}$ and $C^{12}$.
