The activity of a sample of radioactive element `.^(100)A` is 6.02 curie. Its decay constant is `3.7 xx 10^(4) s^(-1)`. The initial mass of the sample will be:

The activity of a sample of radioactive element X^(100) is 6.02 curie. Its decay constant is 3.7 xx 10^(-4) s^(-1) . The initial mass of the sample will be a. 10^(-6) g b. 10^(-8) g c. 10^(-20) g d. 10^(-15) g

The activity of a sample of radioactive element X^(100) is 6.02 curie. Its decay constant is 3.7 xx 10^(4) s^(-1) . The initial mass of the sample will be a. 10^(-6) g b. 10^(-8) g c. 10^(-20) g d. 10^(-15) g

The activity of a radioactive nucleide (X^(100)) is 6.023 curie. If its disintegration constant is 3.7xx10^(10) "sec"^(-1) , the mass of X is

The activity of a radionuclide (X^(100)) is 6.023 curie . If the disintegration constant is 3.7 xx 10^(4) sec^(-1) , the mass of the radionuclide is :

The activity of radionuclide (""^(100)X) is 6.023 curie. If the disintegration constatnt is 3.7xx10""^(4)sec""^(-1) ,the mass of radionuclide is

Half-life of a radioactive sample is 200 days. Its decay constant 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: