Question:
The carbon dating method is used to determine the age of
The carbon dating method is used to determine the age of
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Radiocarbon dates \textbf{organic} remains. Rocks need other radiometric systems.
Updated On: Aug 12, 2025
- Rocks
- Fossils
- Trees
- Ancient monuments
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The Correct Option is B
Solution and Explanation
Principle: Radiocarbon (\(\mathrm{^{14}C}\)) dating measures the decay of \(\mathrm{^{14}C}\) in {once-living} organic material (half-life \(\sim 5730\) years) to estimate ages up to \(\sim 50{,}000\) years.
Applying to options: (b) {Fossils}—though many fossils mineralize—often can be dated via residual organic matter or associated organic remains (bone collagen, charcoal). (c) {Trees} can be dated by \(\mathrm{^{14}C}\) too, but the option set expects the broader archaeological target “fossils.” (a) Ordinary {rocks} are dated by other isotopic systems (U–Pb, K–Ar, Ar–Ar). (d) {Ancient monuments} are dated indirectly via organic materials found with them (wood, mortar carbonates), not the stone itself.
Applying to options: (b) {Fossils}—though many fossils mineralize—often can be dated via residual organic matter or associated organic remains (bone collagen, charcoal). (c) {Trees} can be dated by \(\mathrm{^{14}C}\) too, but the option set expects the broader archaeological target “fossils.” (a) Ordinary {rocks} are dated by other isotopic systems (U–Pb, K–Ar, Ar–Ar). (d) {Ancient monuments} are dated indirectly via organic materials found with them (wood, mortar carbonates), not the stone itself.
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