The half life period of radio active isotope is 5 minutes. The fraction of isotope, that will be remaining after 30 minutes is

The half life of a radioactive element is 5 min. The fraction of the sample of this isotope that will remain after 30 min is

The radio active isotope may emit

The half life period of a radioactive substance is 15 minutes. What per cent of radioactivity of that material will remain after 45 minutes ?

The half life period of a radioactive material is 15 minutes. What percent will remain after 45 minutes ?

The half life period of a radio active material is 15 minutes. What percentage of radioactivity of that material will remain after 45 minutes ?

The half life of a radio isotope is 5 years . The fraction which will decay in 15 years , will be

The half life period of a first order reaction is 60 minutes. What percentage of the reactant will be left behind after 120 minutes ?