A fresbly prepared of a radioisotope of half - life `1386 s ` has activety `10^(3) ` disentegrations per second Given that ln `2 = 0.693` the fraction of the initial number of nuclei (expressedin nearest integer percentage ) that will decay in the first `80 s ` after preparation of the sample is

A freshly prepared sample of a radioisotope of half - life 1386 s has activity 10^(3) disintegrations per second Given that ln 2 = 0.693 the fraction of the initial number of nuclei (expressed in nearest integer percentage ) that will decay in the first 80 s after preparation of the sample is

A freshly prepared sample of a radioisotope of half - life 1386 s has activity 10^(3) disintegrations per second Given that ln 2 = 0.693 the fraction of the initial number of nuclei (expressed in nearest integer percentage ) that will decay in the first 80 s after preparation of the sample is

A freshly prepared sample of a radioisotope of half - life 1386 s has activity 10^(3) disintegrations per second Given that ln 2 = 0.693 find the fraction of the initial number of nuclei (expressed in nearest integer percentage ) that will decay in the first 80 s after preparation of the sample is

C-11 is a radioisotope of carbon. Its half life is 20 minutes. What fraction of the initial number of C-11 atoms in a sample will have decayed away after 80 minutes ?

If the half-life of a radioactive nucleus is 3 days, nearly what fraction of the initial number of nuclei will decay on the 3rd day? (Given, 3sqrt(0.25)~~ 0.63 ).

If the half life of a radioactive nucleus is 3 days nearly, what fractions of the initial number of nuclei will decay on the 3rd day? (Given that sqrt(0.25)= 0.63)

The activity of a freshly prepared radioactive sample is 10^(10) disintegrations per second , whose mean life is 10^(9)s The mass of an atom of this radioisotope is 10^(-25) kg The mass (in mg) of the radioactive sample is

The activity of a freshly prepared radioactive sample is 10^(10) disintegrations per second , whose mean life is 10^(9)s The mass of an atom of this radioisotope is 10^(-25) kg The mass (in mg) of the radioactive is