Saved Bookmarks
| 1. |
ntthe activity of a sample of radioactive material is A1 ,at time t1 ,and A2 at time t2 (t2>t1).if its mean life T ,thenn |
| Answer» ntthe activity of a sample of radioactive material is A1 ,at time t1 ,and A2 at time t2 (t2>t1).if its mean life T ,thenn | |