Explain the application of carbon-14 in carbon dating.
Explain the application of carbon-14 in carbon dating.
- Carbon-14 isotope is radioactive with half-life t½ = 5600years
- It is absorbed and maintained at constant concentration by plants during photosynthesis.
- When plants die carbon- 14 decays and its concentration falls due to lack of renewal by photosynthesis.
- If N0 is the activity of fresh plant and N is the activity of dead plant after time t, the age of the dead plant t is deduced from
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CATEGORIES A-level modern physics
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