Two samples 
and 
contain equal amount of radioactive substances. If 
th of the sample 
and 
th of the sample Y, remain after 8 hours, then the ratio of half life periods of X and Y is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
As 
where, number of half lives, 
whose T is the half- life period
for sample X
…… ..(i)
For sample Y
……… .(ii)
Dividing (i) by (ii), we get
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