The radioactivity of a sample is 
at a time 
and 
at a time 
. If the half-life of the sample is 
then the number of nuclei that have disintegrated in the time 
is proportional to
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Half-life, 
Activity, 
and 
Where, 
is disintegration constant.
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