A radio nuclide sample has N0 nuclei at t = 0. Its number of undecayed

1.	A radio nuclide sample has N0 nuclei at t = 0. Its number of undecayed nuclei get reduced to N0/e at t = τ. What does the term τ stand for ? Write in terms of τ the time interval ‘T’ in which half of the original number of nuclei of this radio nuclide would have got decayed.
Answer» τ is the mean life time of radio nuclide T is the half-life period of radio nuclide, the relation is τ = 1.44 T i.e., Mean life period = 1.44 × Half life period

A radio nuclide sample has N0 nuclei at t = 0. Its number of undecayed nuclei get reduced to N0/e at t = τ. What does the term τ stand for ? Write in terms of τ the time interval ‘T’ in which half of the original number of nuclei of this radio nuclide would have got decayed.

Answer»

τ is the mean life time of radio nuclide T is the half-life period of radio nuclide, the relation is

τ = 1.44 T

i.e., Mean life period = 1.44 × Half life period

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A radio nuclide sample has N0 nuclei at t = 0. Its number of undecayed nuclei get reduced to N0/e at t = τ. What does the term τ stand for ? Write in terms of τ the time interval ‘T’ in which half of the original number of nuclei of this radio nuclide would have got decayed.

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