Physics - Modern Physics Question with Solution | TestHub

Radio carbon dating is done by measuring ratio of ${}^{14}\mathrm{C}$ present in the sample, since proportion of ${}^{14}\mathrm{C}$ and ${}^{12}\mathrm{C}$ in a body is same; but after death ${}^{14}\mathrm{C}$ decays. Hence knowing the present ratio of ${}^{14}\mathrm{C}$ to ${}^{12}\mathrm{C}$, sample can be dated.