A certain radioactive element disintegrates with a decay

Last updated: 5/30/2023

A certain radioactive element disintegrates with a decay constant of 7 9 x 10 10 sec At a given instant of time if the activity of the sample is equal to 55 3 x 10 disintegration then number of nuclei at that instant of sec time a 7 0 1021 c 4 27 x 10 b 4 27 10 3 d 6 x 1023 TS EAMCET 15