A piece of bone from an archaeological site is found to give a count rate of 15 counts per minute. A similar sample of fresh bone gives a count rate of 19 counts per minute. Calculate the age of the specimen. Given T1/2=5570 years
Count rate of fresh sample N0=19 counts/minute
Count rate of bone N=15 counts/minute
T1/2=5570 years, Age of the sample, t=?
15=19e−λt (or) eλt=1915
loge1915=λt (or) t=loge1915×1λ