The Practical Limit for ¹⁴C Dating Occurs When Its Activity

question 2

Multiple Choice

The practical limit for ¹⁴C dating occurs when its activity falls to 0.20% of its original value due to interference in detectors by natural background radiation.If the half-life is 5715 years,what is the maximum age of a sample that can be dated by ¹⁴C without interference?

• A)1.3 × 10⁴ years
• B)2.9 × 10⁴ years
• C)5.1 × 10⁴ years
• D)2.9 × 10⁶ years