1.

If the disintegration constant is 6.93 xx 10^(-6) yr^(-1), then half-life of ._(6)C^(14) will be

Answer»

`10^(2) YR`
`10^(3) yr`
`10^(4) yr`
`10^(5)yr`

Solution :`t_(1//2) = (0.693)/(K) = (0.693)/(6.93 xx 10^(-6)) = 0.1 xx 10^(6) = 10^(5) yr`


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