A certain substance decays to 1/232 of its initial activity in 25 days. Calculate its half-life.

A certain substance decays to 1/32 of its initial activity in 25 days. Calculate its half-life.

A certain substance decays to 1//32 of its initial activity in 25 days. Calculate its half-life.

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

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

A radioactive element decays to 1//32th of its initial activity in 25 decay. Calculate its half life.

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

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