MCQOPTIONS
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| 1. |
The half-life of radium (226) is 1620 years. The time taken to convert 10 grams of radium to 1.25 grams is [MP PET 1994; UPSEAT 2001] |
| A. | 810 years |
| B. | 1620 years |
| C. | 3240 years |
| D. | 4860 years |
| Answer» E. | |