A sample of radioactive material has mass `m`, decay constant `lambda`, and molecular weight `M`. Avogadro constant `=N_(A)`. The initial activity of the sample is:

A sample of radioactive meterial has mass m , decay constant lambda , and molecular weight M . Avogardo constant =N_(A) . The initial activity of the sample is:

A radioactive sample has a mass m, decay cosntant lambda , and molecular weight M. If the Avogadro number is N_A , then (a) find the initial number of neclei present, (b) find the number of deacyed nuceli after a time t, (c ) find the activity of the sample after a time t,

A radioactive isotope has a decay constant lambda and a molar mass M. Taking the Avogadro constant to be L, what is the activity of a sample of mass m of this isotope ?

The decay constant lambda of a radioactive sample:

The decay constant of a radioactive sample

Obtain the relation N=N_(0)e^(-lamdat) for a sample of radio active material having decay constant lamda where N is the number of nuclei present at instant t. Hence, obtain the relation between decay constant lamda and half life T_(1//2) of the sample.

Disintegration constant of a radioactive material is lambda :

Radioactive material 'A' has decay constant '8 lamda' and material 'B' has decay constant 'lamda'. Initial they have same number of nuclei. After what time, the ratio of number of nuclei of material 'B' to that 'A' will be (1)/( e) ?

A radioactive element A decays with a decay constant lambda . The fraction of nuclei that decayed at any time t , if the initial nucle are N_(0) is given by: