NSEB topic read · 2 min
Read Carbon Dating from Remaining C-14
Radioactive dating compares the C-14 remaining with the amount at death.
NSEB · Evolution · 1 linked question · 100% coverage
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Fossil Dating is the central idea in this question pattern. Identify the condition in the stem before applying the method below.
Study deeper: NCERT Biology · Evolution
Use the decay fraction
Here 0.185/0.26 = 0.712, so t = 5700 × log(0.712)/log(0.5) ≈ 2,788 years. Select the nearest range: around 3,000 years. Choose B.
OlympIQ exam lens
- ✓Use remaining/original isotope amount.
- ✓Convert the decay fraction into half-lives.
OlympIQ trap
Do not treat a non-half fraction as one complete half-life.
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