Q. Which of the following carbon isotopes is/are used in Carbon Dating?

1. C-12
2. C-13
3. C-14

Select the correct option from the codes given below:
Answer: Only 3
Notes: Carbon dating utilizes the radioactive isotope Carbon-14 (C-14) due to its half-life of about 5730 years. C-12 and C-13 are stable isotopes and not used for dating purposes. Only C-14 decays over time, allowing scientists to estimate the age of organic materials by measuring the remaining C-14 content.