Activity of 1g carbonobtained from ancient Egyptian wooden article is 3.5 count/min/g. Activity of 1 g carbon obtained from fresh wooden sample at Japan near to horishima Nagasaki is 15.5 counts/min/g. This fresh sample has 10% more activity than other fresh samples (not affected by any radiation) dueto atom bomb blst during the second world war. Half life of C""^(14) is 5770 years. Age of Egyptian wooden article is nearly

Activity of 1g carbonobtained from ancient Egyptian wooden article is

1.	Activity of 1g carbonobtained from ancient Egyptian wooden article is 3.5 count/min/g. Activity of 1 g carbon obtained from fresh wooden sample at Japan near to horishima Nagasaki is 15.5 counts/min/g. This fresh sample has 10% more activity than other fresh samples (not affected by any radiation) dueto atom bomb blst during the second world war. Half life of C""^(14) is 5770 years. Age of Egyptian wooden article is nearly
Answer» 2885 years 5770 years 11540 years 12500 years Solution :`t/t""^(1//2)=2,t=2xx5770`