A radioactive sample has half-life of 3 years. The time required for the activity of the sample to reduce to th of its initial value is about
Text Solution
Verified by ExpertsThe correct answer is:
B
Half life of the sample, years.
Let be the time taken for the activity of the sample to reduce to
of its initial value.
Let be the number of atoms present initially and
be the number at the end of time
.
Using,
or or
or or
or years
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