A radioactive substances decays so that 3% of its initial nuclei remain after 60 seconds. The half life period of the substances is nearly

A radioactive substance decays to 1//16^(th) of its initial mass in 40 days. The half life of the substance, in days, is :

A radioactive substance decays to 1/16 th of its initial mass in 40 days. The half life of the substance, in days, is?

A radioactive substance decays to ((1)/(16))^(th) of its initial activity in 80 days. The half life of the radioactive substance expressed in days is …….

A radioactive substance decays to 1/32 of its initial value in 25 days. Calculate its half life.

A radioactive substance decays to 1/16 th of the initial mass in 40 days. The half life of the substance is….. Day.

A radioactive substance decays to ((1)/(16))^(m) of its initial activity in 40 days. The half-life of the radioacctive substance expressed in days is