Home 🎁Question 7-The activity of a radioactive sample falls from 8000s^-1 to 500s^-1 in 20 hours .what is the half life ? (Physics 2019-20 2Marks AMU +2) 🎁Question 7-The activity of a radioactive sample falls from 8000s^-1 to 500s^-1 in 20 hours .what is the half life ? (Physics 2019-20 2Marks AMU +2) Ruhul Amin Alig Out of syllabus for 2020-21 boards⚠⚠⚠⚠⚠⚠⚠⚠ Facebook Twitter Whatsapp Newer Older