An isotope of potassium K_(40) undergoes two parallel types of decy, one by electron capture and other by beta decay with half lives as 1.3xx10^(9) years and (1.3)/(9)xx10^(9) years respectively If in a sample of a mineral, mass ratio of K : Ar Ca "is" 5"and" 16 then calculate age of the mineral if it is known that all Ca^(40) in the mineral is not from the radioactive decay of potassium. [Express your answer in terms of 10^(7) years for e.g. if you answer is 2xx10^(9) years fill 0200 in OMR sheet]

An isotope of potassium K_(40) undergoes two parallel types of decy, o

1.	An isotope of potassium K_(40) undergoes two parallel types of decy, one by electron capture and other by beta decay with half lives as 1.3xx10^(9) years and (1.3)/(9)xx10^(9) years respectively If in a sample of a mineral, mass ratio of K : Ar Ca "is" 5"and" 16 then calculate age of the mineral if it is known that all Ca^(40) in the mineral is not from the radioactive decay of potassium. [Express your answer in terms of 10^(7) years for e.g. if you answer is 2xx10^(9) years fill 0200 in OMR sheet]
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