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The system which uses Radioactivity to decide the Age of materials is known as what ?

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The system which uses Radioactivity to decide the Age of materials is known as what ?
posted Jun 9, 2015 by Pravin Vaity

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Radioactive dating

Radioactive dating (often called Radiometric dating) is a technique used to date materials such as rocks or carbon, based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.

For example say in a rock radioactive X is found and after decay say X produces Y. Say half-life of X is 1m Years. Now under examination X is found in 10 units and Y is found in 30 units. i.e. After 1m Years 40units of X converted to 20 unit of X and 20 units of Y, and after 2m years the result is 10unit of X and 30 unit of Y. So the age of rock is 2m years.

answer Jun 10, 2015 by G. Vignash
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