The relation between half-life T of a radioactive sample and its mean life τ is:
T = 0.693 τ
τ = 0.693 T
τ = T
τ = 2.718 T
Average life -
- wherein
It is defined as time in which number of nuclei reduces to part of initial number of nuclei
Half Life Time -
- wherein
Half life is time in which number of nuclei reduced to half of initial number of nuclei.
Half life T =
Average life (mean life) I =
Option 1)
T = 0.693 τ
Incorrect option
Option 2)
τ = 0.693 T
Incorrect option
Option 3)
τ = T
correct option
Option 4)
τ = 2.718 T
Incorrect option