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Find the age of an ancient Egyptian wood...

Find the age of an ancient Egyptian wooden article (in years) from the given information.
(i) Activity of 1g of carbon obtained from ancient wooden article =7 counts/min/g
(ii) Activity of 1 g carbon obtained from fresh wooden sample =15.4 counts per min/g
(iii) Precentage increases in level of `C^(14)` due to nuclear explosions in past 100 years is 10%
(iv) `t_(1//2)` of `._(6)^(14)C=5770` years

A

`5.770xx10^(3)`

B

`16.87xx10^(3)`

C

2488

D

none of these

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The correct Answer is:
A
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