The ratio of the abundance of carbon-14 to carbon-12 in asample of dead wood is

Question

The ratio of the abundance of carbon-14 to carbon-12 in asample of dead wood is one quarter the ratio for living wood. Ifthe half-life of carbon-14 is 5730 years, which one of thefollowing expressions determines how many years ago the wooddied?

a. 0.75 × 5730
b. 2 × 5730
c. 0.50 × 5730
d. 0.25 × 5730
e. 4 × 5730 The ratio of the abundance of carbon-14 to carbon-12 in asample of dead wood is one quarter the ratio for living wood. Ifthe half-life of carbon-14 is 5730 years, which one of thefollowing expressions determines how many years ago the wooddied? 0.75 × 5730 2 × 5730 0.50 × 5730 0.25 × 5730 4 × 5730

Explanation / Answer

time taken to half decay t = 5730 years time taken to quater decay = 2t                                         =2 * 5730 years So, option ( b ) is correct

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.