A radioactive substance consists of two distinct having equal number of atoms initially. The mean products in both cases are stable. A plot is made of total number of radioactive nuclei as a function of time. Which of the following figures best represents the form of this plot?

A radioactive sample consists of two distinct species having equal number of atoms initially. The mean life of one species is tau and that of the other is 5 tau . The decay products in both cases are stable. A plot is made of the total number of radioactive nuclei as a function of time. Which of the following figure best represents the form of this plot? (a), (b), (c), (d)

A radioactive sample consists of two distinct species having equal number of atoms initially. The mean life of one species is tau and that of the other is 5 tau . The decay products in both cases are stable. A plot is made of the total number of radioactive nuclei as a function of time. Which of the following figure best represents the form of this plot? (a), (b), (c), (d)

A radioactive sample consists of two distinct species having equal number of atoms initially. The mean life of one species is tau and that of the other is 5 tau . The decay products in both cases are stable. A plot is made of the total number of radioactive nuclei as a function of time. Which of the following figure best represents the form of this plot? (a), (b), (c), (d)

A radicactive sample consider of two distinct species having equial number initially . The mean life time of one species is tau and that of the other is 5 tau . The decay prodects in both cases are stable . A plot is made of the total number of radioactive nuclei as a function of time , which of the following figure best represent the from of this plot?

The rate of decay (R ) of nuclei in a radioactive sample is plotted against time (t). Which of the following best represents the resulting curve ?

The rate of decay (R ) of nuclei in a radioactive sample is plotted against time (t) . Which of the following best represents the resulting curve ?

In a radioactive disintegration, the ratio of initial number of atoms to the number of atoms present at an instant of time equal to its mean life is

In a radioactive disintegration, the ratio of initial number of atoms to the number of atoms present at an instant of time equal to its mean life is

Two radioactive substances X and Y initially contain an equal number of atoms. Their half-lives are 1 hour and 2 hours respectively. Then the ratio of their rates of disintergration after two hours is