Ten percent of a radioactive sample has decayed in 1 day. after 2 day the decayed percentage of nuclei will be
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10% of a radioactive sample has decayed in 1 day.
Let initially radioactive sample is
after one day, radioactive sample remains, N =
=
using rate equation of radioactive,
.......(1)
Let after 2 days , radioactive sample remains N'
then, N' =
from equation (1),
N' =
N' =
N' =
hence, 81% radioactive sample remains in 2 days .
so, 19% of radioactive sample has decayed in 2 days.
10% of a radioactive sample has decayed in 1 day.
Let initially radioactive sample is
after one day, radioactive sample remains, N =
=
using rate equation of radioactive,
.......(1)
Let after 2 days , radioactive sample remains N'
then, N' =
from equation (1),
N' =
N' =
N' =
hence, 81% radioactive sample remains in 2 days .
so, 19% of radioactive sample has decayed in 2 days.
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