1.

The activity of a sample of radioactive material is A_1at time t_1 and A_2 at time t_(2)(t_2 gt t_1) . Obtain an expression for its mean life.

Answer»

SOLUTION :`A_1=A_o E^(-lambdat_1)` and `A_2=A_o e^(-lambdat_2) A_1/A_2=e^(LAMBDA(t_2-t_1))`
`lambda(t_2-t_1)=ln|A_1/A_2|`
`tau-1/lambda -(t_2-t_1)/(ln|A_1/A_2|)`


Discussion

No Comment Found

Related InterviewSolutions