Multiple Choice
The ratio of the abundance of carbon-14 to carbon-12 in a sample of dead wood is one quarter the ratio for living wood. If the half-life of carbon-14 is 5730 years, which one of the following expressions determines how many years ago the wood died?
A) 2 × 5730
B) 4 × 5730
C) 0.75 × 5730
D) 0.50 × 5730
E) 0.25 × 5730
Correct Answer:

Verified
Correct Answer:
Verified
Q8: What is the SI unit for activity?<br>A)Ci<br>B)counts/min<br>C)Hz<br>D)Gy<br>E)Bq
Q9: The activity of carbon-14 in a sample
Q10: The half-life of a particular isotope of
Q11: What is X?<br>A) <span class="ql-formula" data-value="\alpha"><span
Q12: This question refers to the figure shown.
Q14: Which one of the following statements
Q15: What is the wavelength of the
Q16: Radiation or(and) particles emerge(s) from a
Q17: An isotope of krypton has a half-life
Q18: Complete the following sentence: In a