Estimate the Age of a Bottled Wine That Has a Tritium

Multiple Choice

Estimate the age of a bottled wine that has a tritium, ³H, content 60% that of freshly bottled wine. Tritium decays by beta decay and has a half-life of 12.3 yr. ${ }_{1}^{3} \mathrm{H} \rightarrow{ }_{2}^{3} \mathrm{He}+{ }_{-1}^{0} \mathrm{\beta}$

A) 0.029 yr
B) 7.4 yr
C) 9.1 yr
D) 16 yr
E) 35 yr