The half-life of a radioactive decay is x times its mean life. The value of zx is

If the half-life of a radioactive sample is 10 hours its mean life is

If the half-life of a radioactive sample is 10 hours its mean life is

If the half-life of a radioactive sample is 10 hours its mean life is ?

The half life of a radioactive element A is same as mean life time of another radioactive element B.Initially, both have same number of atoms. B decays faster than A . Why?

The half life of a radioactive substance is 20s, the time taken for the sample to decay by 7//8^(th) of its initial value is

The half life of a radioactive substance is 20s, the time taken for the sample to decay by 7//8^(th) of its initial value is

The half life period of a radioactive element x is same as the mean life time of another radioactive element y. Initially they have the same number of atoms.Then :