alleryThe age of fossils and old monuments is estimated using which technique?
ANuclear fission method
BRadio carbon dating
CSmoke detector method
DGoitre cure therapy
Answer & Solution
Correct answer: B. Radio carbon dating
1. Living things contain a fixed proportion of radioactive carbon.
2. Measuring the remaining radio carbon estimates how old a sample is.
3. This method is called radio carbon dating, used in archaeology.
4. The other options are unrelated applications.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 6 Nuclear Physics "Nuclear Physics", p.90_
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