A sample of radioactive material has mass 
, decay constant 
, and molecular weight 
. Avogadro constant 
. The initial activity of the sample is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Activity = number of disintegrations per unit time Activity 
,
where 
the total number of nuclei
Also, 
number of moles 
∴ Initial activity 
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