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An analysis of the rock shows that the r...

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

A

`7.26 xx10^(9)` year

B

`1.43 xx 10^(9)` year

C

`3.28 xx 10^(9)` year

D

`4.32 xx10^(8)` year

Text Solution

Verified by Experts

The correct Answer is:
C
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