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The mean lives of a radioactive subs†an ces are 40h and 60h for a α-emission and β- emission respectively. The decay cons†an t of the radioactive subs†an ce if it is decaying α and β simul†an eously is nearly (1)0.04h^{-1} (2)0.03h^{-1} (3)0.01h^{-1} (4)0.02h^{-1 |
| Answer» The mean lives of a radioactive subs†an ces are 40h and 60h for a α-emission and β- emission respectively. The decay cons†an t of the radioactive subs†an ce if it is decaying α and β simul†an eously is nearly (1)0.04h^{-1} (2)0.03h^{-1} (3)0.01h^{-1} (4)0.02h^{-1 | |