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The ratio of C^(14) to C^(12) in a livi...

The ratio of `C^(14)` to `C^(12)` in a living matter is measured to be `(C_(14))/(C_(12)) =1.3 xx 10^(-12)` at the present time Activity of `12.0gm` carabon sample is 180 dpm. The half life of `C^(14) ` is nearly _______ `xx 10^(12) sec`.
[Given : `N_(A)=6 xx 10^(23)`]

A

`0.18`

B

`1.8`

C

`0.384`

D

648

Text Solution

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The correct Answer is:
A
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