Asked by tangocharliee | 10th Dec, 2009, 07:55: AM

Expert Answer:

HI dear,

The probability of nucleus to decay in two mean lives is:

y = 1/2x

Written for time t:

y = 1/2 1/t

y is fraction of original material

t 1/2 is the number of half-lives.

y = 1/22 = 1/4

Hope this helps.


Answered by  | 20th Dec, 2009, 02:06: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.