A radio-isotope has a half-life of `5` yeard. The fraction of the atoms of this material that would decay in `15` years will be

A radioisotope has a half life of 5 years. The fraction of the atoms of this meterial that would decay in 15 years will be

A ratio isotope has a half-life of 75 years. The fraction the atoms of this material that would decay in 150 years. Will be.

A radioactive substance has a half-life of 1 year. The fraction of this material, that would remain after 5 years will be.

Tritium has a half-life of 12.5 years. What fraction of the sample will remain undecayed after 50 years?

A radioactive material has half-life of 10 days. What fraction of the material would remain after 30 days ?

A radioactive material has half-life of 10 days. What fraction of the material would remain after 30 days ?

A certain radioactive substance has a half life of 5 years. Thus for a nucleus in a sample of the element, probability of decay in 10 years is