A solution contains a mixture of isotopes of X^(A)(t_(1//2) = 14 days) and X^(A_(2)) (t_(1//2) = 25 days(. Total acticity is 1 curie at t = 0. The activity reduces by 50% in 20 days. Find: (a) The initial activitites of X^(A_(1)) and X^(A_(2)) (b) The ratio of theirinitial no.of nuclei.

A solution contains a mixture of isotopes of X^(A)(t_(1//2) = 14 days)

1.	A solution contains a mixture of isotopes of X^(A)(t_(1//2) = 14 days) and X^(A_(2)) (t_(1//2) = 25 days(. Total acticity is 1 curie at t = 0. The activity reduces by 50% in 20 days. Find: (a) The initial activitites of X^(A_(1)) and X^(A_(2)) (b) The ratio of theirinitial no.of nuclei.
Answer» ANSWER :(a) `3.3669 CI, 0.6331 Ci`, (B) `0.3245`