MCQOPTIONS
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| 1. |
The radioactivity due to \[{{C}^{14}}\] isotope (half-life 6000 years) of a sample of wood from an ancient tomb was found to be nearly half that of fresh wood, the tomb is therefore about [NCERT 1980, 81; MP PET 1989] |
| A. | 3000 years old |
| B. | 6000 years old |
| C. | 9000 years old |
| D. | 1200 years old |
| Answer» C. 9000 years old | |