At 1 0 a radioactive substance has a mass m Its half life is

Last updated: 6/25/2023

At 1 0 a radioactive substance has a mass m Its half life is 10 minutes When 1 1 the amount substance disintegrated is m 5 and when t 12 the amount of substance disintegrated is 3m 5 Then the time interval 1 1 is 1 10 minutes 2 20 minutes 3 5 minutes 4 7 minutes