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  • An old piece of wood has 25% of as much as ordinary wood today has. Find the age o

An old piece of wood has 25% of \mathrm{C}_{14} as much as ordinary wood today has. Find the age of wood given \mathrm{t_{1 / 2}} of \mathrm{\mathrm{C}_{14}} is 5760 yrs.

Option: 1

5760 yrs


Option: 2

11520 yrs


Option: 3

2880 yrs.


Option: 4

None of the above.


Answers (1)

best_answer

The old piece of wood has 25 % of \mathrm{C}_{14} as much as ordinary wood today has. It means two half-times have passed.
Total time passed (age of wood) \mathrm{t=2 \times t_{1 / 2}=2 \times 5760 ~yrs = 11520 ~yrs} .

Posted by

Sanket Gandhi

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