Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The radium and uranium atoms in a sample of uranium mineral are in the ratio of 
. If half-life period of radium is 1620 years, the half-life period of uranium will be
A
years
B
years
C
years
D
years
Text Solution
Verified by ExpertsThe correct answer is:
C
According to radioactive equilibrium 
or 
Where 
and 
are half periods of A and B respectively
At equilibrium A and B are present in the ratio of their half lives 
Half-life of uranium
= 
years .
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