An analysis of the rock shows that the relative number of `Sr^(87)` and `Rb^(87) (t_(1//2)=4.7 xx10^(10)` year) atoms is 0.05 . What is the age of the rock? Assume all the `Sr^(87)` have been formed from `Rb^(87)` only

The analysis of a rock shows that relative no. of ""^(206)Pb and ""^(238)U atoms is Pb/U =0.25. If t_(0.5) ""^(238)U rarr ""^(206)Pb is 4 xx 10^(9) years, the age of the rock is

A sample of rock from moon contains equal number of atoms of uranium and lead ( t_(1//2)" for "U=4.5xx10^(9) years). The age of the rock would be :

A sample of rock from moon contains equal number of atoms of uranium and lead (t""_(1//2)for U=4.5xx10""^(9) year). The age of the rock would be

The number of U^(238) nuclei in a rock sample equal to the number of Pb^(206) atoms. The half life of U^(238) is 4.5xx10^(9) years. The age of the rock is

The number of 238 U atoms in an ancient rock equals the number of 206 Pb atoms. The half-life of decay of 238 U is 4.5x10 9 years. Estimate the age of the rock assuming that all the 206 Pb atoms are formed from the decay of 238 U.

The number of 238 U atoms in an ancient rock equals the number of 206 Pb atoms. The half-life of decay of 238 U is 4.5x10 9 years. Estimate the age of the rock assuming that all the 206 Pb atoms are formed from the decay of 238 U.

The number of ^238 U atoms in an ancient rock equals the number of ^206 Pb atoms. The half-life of decay of ^238 U is 4.5 xx 10^9 y . Estimate the age of the rock assuming that all the ^206 Pb atoms are formed from the decay of ^238 U .