At  a given instant there are 25% undecayed radioactive nuclei in a sample. After 10 sec, the number of undecayed nuclei is reduced to 12.5%.
calculate a) mean life of the nuclei b)the time in which the number of undecayed nuclei will further reduce to 6.25% of the reduced number.

Asked by Duwanie | 25th Nov, 2014, 12:20: AM

Expert Answer:

Answered by Romal Bhansali | 25th Nov, 2014, 10:43: AM