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Forum Index -> Trignometry like the article? email it to a friend.  
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ssbrightstar1 (5)

Cool goIITian

Olaaa!! Perrrfect answer. 1  [1 rates]

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A living plant acquires a definite of 146C nuclei in  




 






 




 


carbon content.If a




 






 




 






freshly cut piece of wood gives 16.1 counts per minute per grams




 






 




 










 and an old wooden bowl gives 9.6 counts per minute per grams of




 






 




 






carbon , calculate the age of the wooden bowl.The half-life of 146C is                                                                                                                     5770 years.




 


ANSWER==4304 years




 






 




 








 

    
rhd92781 (631)

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Olaaa!! Perrrfect answer. 109  [152 rates]

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After n half lives, remaining rate of decomposition is given by


Rn=Ro/2n


so 9.6=16.1/2n


This will give u n=0.75


So total age of old wooden bowl = 0.746*5770 years = 4304 yrs


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