Question:
The half life of a radioactive substance is 20 minutes The
Last updated: 6/25/2023
![The half life of a radioactive substance is 20 minutes The](https://media.kunduz.com/media/sug-question-candidate/20210710125318827635-3531225.jpg?h=512)
The half life of a radioactive substance is 20 minutes The approximate time interval 1 1 between the time t when 2 3 of it has decayed and time t when 1 3 of it has decayed is a 7 min c 20 min b 14 min d 28 min