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| 1. |
10 gram of radioactive material of half life 15 years is kept in a box for 20 years. The disintegrated material is : 1) 10.2 g 2) 6.03 g 3)4.03 g 4) 12.6 g |
| Answer» 10 gram of radioactive material of half life 15 years is kept in a box for 20 years. The disintegrated material is : 1) 10.2 g 2) 6.03 g 3)4.03 g 4) 12.6 g | |