A piece of an ancient bone has a mass of 150 g

PHYSICS · Subjective · CBSE · Physics · Nuclei · Nuclei

Problem

A piece of an ancient bone has a mass of 150 g. The ratio of carbon-14 to carbon-12 atoms in a living bone is constant at

1.3 \times 10^{-12}

. The activity of the bone is measured to be 11 Bq. The half-life of carbon 14 is 5730 years. How old is the bone?