\[{{T}_{1/2}}\] of \[{{C}^{14}}\] isotope is 5770 years. time after which 72% of isotope left is [Orissa JEE 2005]

\[{{T}_{1/2}}\] of \[{{C}^{14}}\] isotope is 5770 years. time after wh

1.	\[{{T}_{1/2}}\] of \[{{C}^{14}}\] isotope is 5770 years. time after which 72% of isotope left is [Orissa JEE 2005]
A.	2740 years
B.	274 years
C.	2780 years
D.	278 years
Answer» B. 274 years

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\[{{T}_{1/2}}\] of \[{{C}^{14}}\] isotope is 5770 years. time after which 72% of isotope left is [Orissa JEE 2005]

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