A radioactive isotope X with half-life of `693xx10^(9)` years decay to Y which is stable. A sample o
Channel: Doubtnut
Date: 2020-08-30

A radioactive isotope X with half-life of `693xx10^(9)` years decay to Y which is stable. A sample of rock from of the moon was found to contain both the elements X Y in the mole ratio `1:7` . What is the age of the rock ?