A sample of radioactive isotope with a half life of 20 days weighs `1 g`. After 40 days the weight
Channel: Doubtnut
Date: 12/07/2020

A sample of radioactive isotope with a half life of 20 days weighs `1 g`. After 40 days the weight of the remaining elements is  a. `0.5 g`       b. `0.0 g`      c. `0.25 g`        d. `1//6 g`