Two radioactive substances 
and 
originally have 
and 
nuclei respectively. Half life of 
is half ofthe half life of 
. After there half lives of 
, number of nuclei of both are equal. The ratio 
will be equal to:
Text Solution
Verified by ExpertsThe correct answer is:
A
After 
half life no of nuclei undecayed 
given 
So 
half life of 
half life of 
Given, 
(after 
)
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