A radioactive element `ThA( ._(84)Po^(216))` can undergo `alpha` and `beta` are type of disintegrations with half-lives, `T_1` and `T_2` respectively. Then the half-life of ThA is

A radioactive element undergoes two different types of radioactive disintegration, one with disintegration constant lambda_(1) and the other with lambda_(2) . The half-life of the element is

A radioactive element undergoes two different types of radioactive disintegration, one with disintegration constant lambda_(1) and the other with lambda_(2) . The half-life of the element is

Two radioactive elements have half lives of an hour and 2 hours. The ratio of their rates of disintegration after 2 hours is

Half-life of a radioactive element is T_(1//2) and its average life is tau . Write down the relation between them.

A radioactive sample can decay by two different processes. The half-life for the first process is T_1 and that for the second process is T_2 Find the effective half - life T of the radioactive sample.