A Scotch-drinking physicist suspects that the 50-year-old Scotch s/he purchased was misrepresented.Reasoning that water must contain tritium because this isotope is produced in the atmosphere by cosmic rays,s/he uses the ³H concentration in the Scotch to determine when it was bottled.S/he finds that the ³H concentration in the Scotch was 64% that of the ³H concentration in the water on the Isle of Islay,where the Scotch was bottled.Approximately how old is this "50-year-old" Scotch? (The half-life of tritium is 12.3 years.)

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The Answer of A Scotch-drinking physicist suspects that the 50-year-old Scotch s/he purchased was misrepresented.Reasoning that water must contain tritium because this isotope is produced in the atmosphere by cosmic rays,s/he uses the ³H concentration in the Scotch to determine when it was bottled.S/he finds that the ³H concentration in the Scotch was 64% that of the ³H concentration in the water on the Isle of Islay,where the Scotch was bottled.Approximately how old is this "50-year-old" Scotch? (The half-life of tritium is 12.3 years.)

A Scotch-Drinking Physicist Suspects That the 50-Year-Old Scotch S/he Purchased